Subtract 42/80 from 12/3
1st number: 4 0/3, 2nd number: 42/80
12/3 - 42/80 is 139/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 3 × 80 = 240,
12/3 = 12 × 80/3 × 80 = 960/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Subtract the two like fractions:
960/240 - 126/240 = 960 - 126/240 = 834/240 - After reducing the fraction, the answer is 139/40
- In mixed form: 319/40
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