Subtract 21/60 from 14/70
14/70 - 21/60 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
14/70 = 14 × 6/70 × 6 = 84/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Subtract the two like fractions:
84/420 - 147/420 = 84 - 147/420 = -63/420 - After reducing the fraction, the answer is -3/20
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