Subtract 90/60 from 8/7
1st number: 1 1/7, 2nd number: 1 30/60
8/7 - 90/60 is -5/14.
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,
8/7 = 8 × 60/7 × 60 = 480/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Subtract the two like fractions:
480/420 - 630/420 = 480 - 630/420 = -150/420 - After reducing the fraction, the answer is -5/14
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