Subtract 90/40 from 42/75
1st number: 42/75, 2nd number: 2 10/40
42/75 - 90/40 is -169/100.
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,
42/75 = 42 × 8/75 × 8 = 336/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
90/40 = 90 × 15/40 × 15 = 1350/600 - Subtract the two like fractions:
336/600 - 1350/600 = 336 - 1350/600 = -1014/600 - After reducing the fraction, the answer is -169/100
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