Subtract 4/45 from 7/15
7/15 - 4/45 is 17/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
4/45 = 4 × 1/45 × 1 = 4/45 - Subtract the two like fractions:
21/45 - 4/45 = 21 - 4/45 = 17/45
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