Subtract 90/80 from 15/63
1st number: 15/63, 2nd number: 1 10/80
15/63 - 90/80 is -149/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
15/63 = 15 × 80/63 × 80 = 1200/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
90/80 = 90 × 63/80 × 63 = 5670/5040 - Subtract the two like fractions:
1200/5040 - 5670/5040 = 1200 - 5670/5040 = -4470/5040 - After reducing the fraction, the answer is -149/168
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