Subtract 18/60 from 8/28
8/28 - 18/60 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
8/28 = 8 × 15/28 × 15 = 120/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
18/60 = 18 × 7/60 × 7 = 126/420 - Subtract the two like fractions:
120/420 - 126/420 = 120 - 126/420 = -6/420 - After reducing the fraction, the answer is -1/70
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