Subtract 90/28 from 3/42
1st number: 3/42, 2nd number: 3 6/28
3/42 - 90/28 is -22/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
3/42 = 3 × 2/42 × 2 = 6/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
90/28 = 90 × 3/28 × 3 = 270/84 - Subtract the two like fractions:
6/84 - 270/84 = 6 - 270/84 = -264/84 - After reducing the fraction, the answer is -22/7
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