Subtract 4/80 from 42/15
1st number: 2 12/15, 2nd number: 4/80
42/15 - 4/80 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
42/15 = 42 × 16/15 × 16 = 672/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
4/80 = 4 × 3/80 × 3 = 12/240 - Subtract the two like fractions:
672/240 - 12/240 = 672 - 12/240 = 660/240 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
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