Subtract 42/9 from 90/35
1st number: 2 20/35, 2nd number: 4 6/9
90/35 - 42/9 is -44/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
90/35 = 90 × 9/35 × 9 = 810/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
42/9 = 42 × 35/9 × 35 = 1470/315 - Subtract the two like fractions:
810/315 - 1470/315 = 810 - 1470/315 = -660/315 - After reducing the fraction, the answer is -44/21
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