Subtract 90/28 from 30/10
1st number: 3 0/10, 2nd number: 3 6/28
30/10 - 90/28 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
30/10 = 30 × 14/10 × 14 = 420/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Subtract the two like fractions:
420/140 - 450/140 = 420 - 450/140 = -30/140 - After reducing the fraction, the answer is -3/14
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