Subtract 8/45 from 75/20
1st number: 3 15/20, 2nd number: 8/45
75/20 - 8/45 is 643/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
75/20 = 75 × 9/20 × 9 = 675/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Subtract the two like fractions:
675/180 - 32/180 = 675 - 32/180 = 643/180 - In mixed form: 3103/180
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