Answers

Subtract 3/30 from 70/84

70/84 - 3/30 is 11/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   70/84 = 70 × 5/84 × 5 = 350/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   3/30 = 3 × 14/30 × 14 = 42/420
4. Subtract the two like fractions:
   350/420 - 42/420 = 350 - 42/420 = 308/420
5. After reducing the fraction, the answer is 11/15

MathStep (Works offline)

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

Related: ⁷⁰/₈₄-⁶/₃₀ ⁷⁰/₈₄-³/₆₀ ⁷⁰/₈₄-⁹/₃₀ ⁷⁰/₈₄-³/₉₀ ⁷⁰/₈₄-¹⁵/₃₀ ⁷⁰/₈₄-²¹/₃₀

Subtract Fractions Calculator