Subtract 81/63 from 12/10
1st number: 1 2/10, 2nd number: 1 18/63
12/10 - 81/63 is -3/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
12/10 = 12 × 63/10 × 63 = 756/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
81/63 = 81 × 10/63 × 10 = 810/630 - Subtract the two like fractions:
756/630 - 810/630 = 756 - 810/630 = -54/630 - After reducing the fraction, the answer is -3/35
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