Subtract 15/50 from 90/42
1st number: 2 6/42, 2nd number: 15/50
90/42 - 15/50 is 129/70.
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,
90/42 = 90 × 25/42 × 25 = 2250/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
15/50 = 15 × 21/50 × 21 = 315/1050 - Subtract the two like fractions:
2250/1050 - 315/1050 = 2250 - 315/1050 = 1935/1050 - After reducing the fraction, the answer is 129/70
- In mixed form: 159/70
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