Subtract 15/60 from 90/7
1st number: 12 6/7, 2nd number: 15/60
90/7 - 15/60 is 353/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 7 × 60 = 420,
90/7 = 90 × 60/7 × 60 = 5400/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
15/60 = 15 × 7/60 × 7 = 105/420 - Subtract the two like fractions:
5400/420 - 105/420 = 5400 - 105/420 = 5295/420 - After reducing the fraction, the answer is 353/28
- In mixed form: 1217/28
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