Subtract 2/5 from 20/45
20/45 - 2/5 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,
20/45 = 20 × 1/45 × 1 = 20/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
2/5 = 2 × 9/5 × 9 = 18/45 - Subtract the two like fractions:
20/45 - 18/45 = 20 - 18/45 = 2/45
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