Subtract 3/18 from 63/42
1st number: 1 21/42, 2nd number: 3/18
63/42 - 3/18 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
63/42 = 63 × 3/42 × 3 = 189/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Subtract the two like fractions:
189/126 - 21/126 = 189 - 21/126 = 168/126 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
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