Subtract 15/75 from 90/70
1st number: 1 20/70, 2nd number: 15/75
90/70 - 15/75 is 38/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
90/70 = 90 × 15/70 × 15 = 1350/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
15/75 = 15 × 14/75 × 14 = 210/1050 - Subtract the two like fractions:
1350/1050 - 210/1050 = 1350 - 210/1050 = 1140/1050 - After reducing the fraction, the answer is 38/35
- In mixed form: 13/35
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