Subtract 45/42 from 9/28
1st number: 9/28, 2nd number: 1 3/42
9/28 - 45/42 is -3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
9/28 = 9 × 3/28 × 3 = 27/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Subtract the two like fractions:
27/84 - 90/84 = 27 - 90/84 = -63/84 - After reducing the fraction, the answer is -3/4
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