Subtract 1/5 from 7/45
7/45 - 1/5 is -2/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
1/5 = 1 × 9/5 × 9 = 9/45 - Subtract the two like fractions:
7/45 - 9/45 = 7 - 9/45 = -2/45
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