Answers

Subtract 9/80 from 42/28

1^st number: 1 14/28, 2^nd number: 9/80

42/28 - 9/80 is 111/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 28 × 20 = 560,
   42/28 = 42 × 20/28 × 20 = 840/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   9/80 = 9 × 7/80 × 7 = 63/560
4. Subtract the two like fractions:
   840/560 - 63/560 = 840 - 63/560 = 777/560
5. After reducing the fraction, the answer is 111/80
6. In mixed form: 131/80

MathStep (Works offline)

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

Related: ⁸⁴/₂₈-⁹/₈₀ ⁴²/₂₈-¹⁸/₈₀ ⁴²/₅₆-⁹/₈₀ ⁴²/₂₈-²⁷/₈₀ ⁴²/₈₄-⁹/₈₀ ⁴²/₂₈-⁴⁵/₈₀ ⁴²/₂₈-⁶³/₈₀

Subtract Fractions Calculator