Subtract 15/18 from 1/30
1/30 - 15/18 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
1/30 = 1 × 3/30 × 3 = 3/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Subtract the two like fractions:
3/90 - 75/90 = 3 - 75/90 = -72/90 - After reducing the fraction, the answer is -4/5
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