Subtract 15/7 from 30/60
1st number: 30/60, 2nd number: 2 1/7
30/60 - 15/7 is -23/14.
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,
30/60 = 30 × 7/60 × 7 = 210/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
15/7 = 15 × 60/7 × 60 = 900/420 - Subtract the two like fractions:
210/420 - 900/420 = 210 - 900/420 = -690/420 - After reducing the fraction, the answer is -23/14
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