Subtract 6/20 from 18/45
18/45 - 6/20 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Subtract the two like fractions:
72/180 - 54/180 = 72 - 54/180 = 18/180 - After reducing the fraction, the answer is 1/10
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