Subtract 70/50 from 25/42
1st number: 25/42, 2nd number: 1 20/50
25/42 - 70/50 is -169/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
25/42 = 25 × 25/42 × 25 = 625/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
70/50 = 70 × 21/50 × 21 = 1470/1050 - Subtract the two like fractions:
625/1050 - 1470/1050 = 625 - 1470/1050 = -845/1050 - After reducing the fraction, the answer is -169/210
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