Subtract 45/28 from 84/42
1st number: 2 0/42, 2nd number: 1 17/28
84/42 - 45/28 is 11/28.
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,
84/42 = 84 × 2/42 × 2 = 168/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
45/28 = 45 × 3/28 × 3 = 135/84 - Subtract the two like fractions:
168/84 - 135/84 = 168 - 135/84 = 33/84 - After reducing the fraction, the answer is 11/28
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