Subtract 12/63 from 21/6
1st number: 3 3/6, 2nd number: 12/63
21/6 - 12/63 is 139/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
21/6 = 21 × 21/6 × 21 = 441/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
12/63 = 12 × 2/63 × 2 = 24/126 - Subtract the two like fractions:
441/126 - 24/126 = 441 - 24/126 = 417/126 - After reducing the fraction, the answer is 139/42
- In mixed form: 313/42
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