Subtract 90/30 from 2/5
1st number: 2/5, 2nd number: 3 0/30
2/5 - 90/30 is -13/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
2/5 = 2 × 6/5 × 6 = 12/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Subtract the two like fractions:
12/30 - 90/30 = 12 - 90/30 = -78/30 - After reducing the fraction, the answer is -13/5
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