Subtract 45/18 from 42/14
1st number: 3 0/14, 2nd number: 2 9/18
42/14 - 45/18 is 1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126 - Subtract the two like fractions:
378/126 - 315/126 = 378 - 315/126 = 63/126 - After reducing the fraction, the answer is 1/2
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