Subtract 63/42 from 80/4
1st number: 20 0/4, 2nd number: 1 21/42
80/4 - 63/42 is 37/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
80/4 = 80 × 21/4 × 21 = 1680/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
63/42 = 63 × 2/42 × 2 = 126/84 - Subtract the two like fractions:
1680/84 - 126/84 = 1680 - 126/84 = 1554/84 - After reducing the fraction, the answer is 37/2
- In mixed form: 181/2
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