Answers

Subtract 3/28 from 72/70

1^st number: 1 2/70, 2^nd number: 3/28

72/70 - 3/28 is 129/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   72/70 = 72 × 2/70 × 2 = 144/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   3/28 = 3 × 5/28 × 5 = 15/140
4. Subtract the two like fractions:
   144/140 - 15/140 = 144 - 15/140 = 129/140

MathStep (Works offline)

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

Related: ⁷²/₇₀-⁶/₂₈ ⁷²/₇₀-³/₅₆ ⁷²/₇₀-⁹/₂₈ ⁷²/₇₀-³/₈₄ ⁷²/₇₀-¹⁵/₂₈ ⁷²/₇₀-²¹/₂₈

Subtract Fractions Calculator