Subtract 84/42 from 70/75
1st number: 70/75, 2nd number: 2 0/42
70/75 - 84/42 is -16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
70/75 = 70 × 14/75 × 14 = 980/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
84/42 = 84 × 25/42 × 25 = 2100/1050 - Subtract the two like fractions:
980/1050 - 2100/1050 = 980 - 2100/1050 = -1120/1050 - After reducing the fraction, the answer is -16/15
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