Answers

Subtract 4/80 from 70/64

1^st number: 1 6/64, 2^nd number: 4/80

70/64 - 4/80 is 167/160.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 80 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   70/64 = 70 × 5/64 × 5 = 350/320
3. Likewise, for the 2nd fraction, since 80 × 4 = 320,
   4/80 = 4 × 4/80 × 4 = 16/320
4. Subtract the two like fractions:
   350/320 - 16/320 = 350 - 16/320 = 334/320
5. After reducing the fraction, the answer is 167/160
6. In mixed form: 17/160

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁰/₆₄-⁸/₈₀ ⁷⁰/₆₄-¹²/₈₀ ⁷⁰/₆₄-²⁰/₈₀ ⁷⁰/₆₄-²⁸/₈₀

Subtract Fractions Calculator