Subtract 90/20 from 90/35
1st number: 2 20/35, 2nd number: 4 10/20
90/35 - 90/20 is -27/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
90/35 = 90 × 4/35 × 4 = 360/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
90/20 = 90 × 7/20 × 7 = 630/140 - Subtract the two like fractions:
360/140 - 630/140 = 360 - 630/140 = -270/140 - After reducing the fraction, the answer is -27/14
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