Answers

Subtract 6/70 from 63/20

1^st number: 3 3/20, 2^nd number: 6/70

63/20 - 6/70 is 429/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   63/20 = 63 × 7/20 × 7 = 441/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   6/70 = 6 × 2/70 × 2 = 12/140
4. Subtract the two like fractions:
   441/140 - 12/140 = 441 - 12/140 = 429/140
5. In mixed form: 39/140

MathStep (Works offline)

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

Related: ⁶³/₂₀-¹²/₇₀ ⁶³/₄₀-⁶/₇₀ ⁶³/₂₀-¹⁸/₇₀ ⁶³/₆₀-⁶/₇₀ ⁶³/₂₀-³⁰/₇₀ ⁶³/₂₀-⁴²/₇₀

Subtract Fractions Calculator