Answers

Subtract 2/21 from 49/70

49/70 - 2/21 is 127/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   49/70 = 49 × 3/70 × 3 = 147/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   2/21 = 2 × 10/21 × 10 = 20/210
4. Subtract the two like fractions:
   147/210 - 20/210 = 147 - 20/210 = 127/210

MathStep (Works offline)

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

Related: ⁹⁸/₇₀-²/₂₁ ⁴⁹/₇₀-⁴/₂₁ ⁴⁹/₇₀-²/₄₂ ⁴⁹/₇₀-⁶/₂₁ ⁴⁹/₇₀-²/₆₃ ⁴⁹/₇₀-¹⁰/₂₁ ⁴⁹/₇₀-¹⁴/₂₁

Subtract Fractions Calculator