Subtract 21/56 from 6/70
6/70 - 21/56 is -81/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
6/70 = 6 × 4/70 × 4 = 24/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
24/280 - 105/280 = 24 - 105/280 = -81/280
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