Subtract 40/54 from 70/20
1st number: 3 10/20, 2nd number: 40/54
70/20 - 40/54 is 149/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
70/20 = 70 × 27/20 × 27 = 1890/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
40/54 = 40 × 10/54 × 10 = 400/540 - Subtract the two like fractions:
1890/540 - 400/540 = 1890 - 400/540 = 1490/540 - After reducing the fraction, the answer is 149/54
- In mixed form: 241/54
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