Subtract 90/28 from 84/70
1st number: 1 14/70, 2nd number: 3 6/28
84/70 - 90/28 is -141/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
84/70 = 84 × 2/70 × 2 = 168/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Subtract the two like fractions:
168/140 - 450/140 = 168 - 450/140 = -282/140 - After reducing the fraction, the answer is -141/70
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