Subtract 16/18 from 1/45
1/45 - 16/18 is -13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
16/18 = 16 × 5/18 × 5 = 80/90 - Subtract the two like fractions:
2/90 - 80/90 = 2 - 80/90 = -78/90 - After reducing the fraction, the answer is -13/15
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