Subtract 15/10 from 90/28
1st number: 3 6/28, 2nd number: 1 5/10
90/28 - 15/10 is 12/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
15/10 = 15 × 14/10 × 14 = 210/140 - Subtract the two like fractions:
450/140 - 210/140 = 450 - 210/140 = 240/140 - After reducing the fraction, the answer is 12/7
- In mixed form: 15/7
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