BrightChamps Logo
Hamburger Menu Icon for BrightChamps Website Navigation

Math Table of Contents Dropdown Table Of Contents

Creative Math Ideas Image
Live Math Learners Count Icon118 Learners

Last updated on March 3rd, 2025

Math Whiteboard Illustration

3 7/8 as a Decimal

Professor Greenline Explaining Math Concepts
Foundation
Intermediate
Advance Topics

It is a simple question on decimal conversion. Firstly, we have to learn fractions and decimals. A mixed number consists of a whole number and a fraction combined. Here, 3 is the whole number, and 7/8 is the fraction. A fraction represents a part of the whole, with the numerator (number on the top) showing how many parts we have, and the denominator (number below) showing how many parts make up the whole. A decimal is a way to represent numbers that are not whole, using a decimal point (.) to separate the whole part from the fractional part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.

Professor Greenline from BrightChamps

What is 3 7/8 as a decimal?

3 7/8 as a decimalAnswer

 

3 7/8 as a decimal can be written as 3.875. It is a terminating decimal, meaning it ends after a certain number of digits.

 

Explanation

 

To convert 3 7/8 to a decimal, we will first convert the fractional part 7/8 into a decimal. Let's see the step-by-step breakdown of the process:

 

Step 1: Identify the numerator and denominator of the fraction. The numerator (7) will be taken as the dividend, and the denominator (8) will be the divisor.

 

Step 2: Divide 7 by 8 using long division.

 

Step 3: As 7 is smaller than 8, consider 70 instead (by adding a decimal point and a zero). Divide 70 by 8.

 

Step 4: 8 goes into 70 eight times, as 8 × 8 = 64. Write 8 in the quotient and subtract 64 from 70, leaving a remainder of 6.

 

Step 5: Bring down another 0 to make 60. Divide 60 by 8, which goes 7 times (8 × 7 = 56). Write 7 in the quotient.

 

Step 6: Subtract 56 from 60 to get a remainder of 4. Bring down a 0 to make 40. Divide 40 by 8, which goes 5 times (8 × 5 = 40).

 

Step 7: Subtract 40 from 40, leaving a remainder of 0, and the division stops here.

 

Thus, 7/8 as a decimal is 0.875. Combine it with the whole number 3 to get 3.875.

Professor Greenline from BrightChamps

Important Glossaries for 3 7/8 as a decimal

  • Mixed Number: A whole number and a fraction combined into one "mixed" number.

 

  • Fraction: A numerical quantity that is not a whole number, representing a part of a whole.

 

  • Decimal: A number that uses the base ten and includes a decimal point to separate the whole part from the fractional part.

 

  • Numerator: The top part of a fraction, indicating how many parts of the whole are being considered.

 

  • Terminating Decimal: A decimal that ends and does not repeat infinitely.
BrightChamps Logo
Follow Us
BrightChamps Facebook Page IconBrightChamps YouTube Channel IconBrightChamps Instagram IconBrightChamps LinkedIn Page Icon
INDONESIA
Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA
H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE
60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA
251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1)
Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2)
143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
Dubai
BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK
Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom