Subtract 10/40 from 90/75
1st number: 1 15/75, 2nd number: 10/40
90/75 - 10/40 is 19/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
90/75 = 90 × 8/75 × 8 = 720/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
10/40 = 10 × 15/40 × 15 = 150/600 - Subtract the two like fractions:
720/600 - 150/600 = 720 - 150/600 = 570/600 - After reducing the fraction, the answer is 19/20
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