Answers

Subtract 21/6 from 32/21

1^st number: 1 11/21, 2^nd number: 3 3/6

32/21 - 21/6 is -83/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 6 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   32/21 = 32 × 2/21 × 2 = 64/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   21/6 = 21 × 7/6 × 7 = 147/42
4. Subtract the two like fractions:
   64/42 - 147/42 = 64 - 147/42 = -83/42

MathStep (Works offline)

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

Related: ⁶⁴/₂₁-²¹/₆ ³²/₂₁-⁴²/₆ ³²/₄₂-²¹/₆ ³²/₂₁-²¹/₁₂ ⁹⁶/₂₁-²¹/₆ ³²/₂₁-⁶³/₆ ³²/₆₃-²¹/₆ ³²/₂₁-²¹/₁₈ ³²/₂₁-²¹/₃₀ ³²/₂₁-²¹/₄₂

Subtract Fractions Calculator