Subtract 42/12 from 80/4
1st number: 20 0/4, 2nd number: 3 6/12
80/4 - 42/12 is 33/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
80/4 = 80 × 3/4 × 3 = 240/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
42/12 = 42 × 1/12 × 1 = 42/12 - Subtract the two like fractions:
240/12 - 42/12 = 240 - 42/12 = 198/12 - After reducing the fraction, the answer is 33/2
- In mixed form: 161/2
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