Subtract 45/20 from 72/75
1st number: 72/75, 2nd number: 2 5/20
72/75 - 45/20 is -129/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
72/75 = 72 × 4/75 × 4 = 288/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
45/20 = 45 × 15/20 × 15 = 675/300 - Subtract the two like fractions:
288/300 - 675/300 = 288 - 675/300 = -387/300 - After reducing the fraction, the answer is -129/100
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