Subtract 15/63 from 21/2
1st number: 10 1/2, 2nd number: 15/63
21/2 - 15/63 is 431/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
21/2 = 21 × 63/2 × 63 = 1323/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126 - Subtract the two like fractions:
1323/126 - 30/126 = 1323 - 30/126 = 1293/126 - After reducing the fraction, the answer is 431/42
- In mixed form: 1011/42
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