Subtract 45/75 from 42/20
1st number: 2 2/20, 2nd number: 45/75
42/20 - 45/75 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
42/20 = 42 × 15/20 × 15 = 630/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
45/75 = 45 × 4/75 × 4 = 180/300 - Subtract the two like fractions:
630/300 - 180/300 = 630 - 180/300 = 450/300 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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