Subtract 20/7 from 18/60
1st number: 18/60, 2nd number: 2 6/7
18/60 - 20/7 is -179/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
18/60 = 18 × 7/60 × 7 = 126/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
20/7 = 20 × 60/7 × 60 = 1200/420 - Subtract the two like fractions:
126/420 - 1200/420 = 126 - 1200/420 = -1074/420 - After reducing the fraction, the answer is -179/70
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