Subtract 63/90 from 12/63
12/63 - 63/90 is -107/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
12/63 = 12 × 10/63 × 10 = 120/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630 - Subtract the two like fractions:
120/630 - 441/630 = 120 - 441/630 = -321/630 - After reducing the fraction, the answer is -107/210
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