Subtract 90/42 from 1/2
1st number: 1/2, 2nd number: 2 6/42
1/2 - 90/42 is -23/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
1/2 = 1 × 21/2 × 21 = 21/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42 - Subtract the two like fractions:
21/42 - 90/42 = 21 - 90/42 = -69/42 - After reducing the fraction, the answer is -23/14
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