Subtract 90/10 from 15/84
1st number: 15/84, 2nd number: 9 0/10
15/84 - 90/10 is -247/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
90/10 = 90 × 42/10 × 42 = 3780/420 - Subtract the two like fractions:
75/420 - 3780/420 = 75 - 3780/420 = -3705/420 - After reducing the fraction, the answer is -247/28
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