Subtract 21/63 from 7/2
1st number: 3 1/2, 2nd number: 21/63
7/2 - 21/63 is 19/6.
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,
7/2 = 7 × 63/2 × 63 = 441/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126 - Subtract the two like fractions:
441/126 - 42/126 = 441 - 42/126 = 399/126 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
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