Subtract 70/60 from 21/20
1st number: 1 1/20, 2nd number: 1 10/60
21/20 - 70/60 is -7/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
70/60 = 70 × 1/60 × 1 = 70/60 - Subtract the two like fractions:
63/60 - 70/60 = 63 - 70/60 = -7/60
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