Subtract 45/20 from 40/75
1st number: 40/75, 2nd number: 2 5/20
40/75 - 45/20 is -103/60.
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,
40/75 = 40 × 4/75 × 4 = 160/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
45/20 = 45 × 15/20 × 15 = 675/300 - Subtract the two like fractions:
160/300 - 675/300 = 160 - 675/300 = -515/300 - After reducing the fraction, the answer is -103/60
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