Subtract 7/18 from 72/45
1st number: 1 27/45, 2nd number: 7/18
72/45 - 7/18 is 109/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Subtract the two like fractions:
144/90 - 35/90 = 144 - 35/90 = 109/90 - In mixed form: 119/90
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