Subtract 90/60 from 15/35
1st number: 15/35, 2nd number: 1 30/60
15/35 - 90/60 is -15/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Subtract the two like fractions:
180/420 - 630/420 = 180 - 630/420 = -450/420 - After reducing the fraction, the answer is -15/14
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