Subtract 25/45 from 3/18
3/18 - 25/45 is -7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Subtract the two like fractions:
15/90 - 50/90 = 15 - 50/90 = -35/90 - After reducing the fraction, the answer is -7/18
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