Subtract 7/80 from 42/36
1st number: 1 6/36, 2nd number: 7/80
42/36 - 7/80 is 259/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
42/36 = 42 × 20/36 × 20 = 840/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Subtract the two like fractions:
840/720 - 63/720 = 840 - 63/720 = 777/720 - After reducing the fraction, the answer is 259/240
- In mixed form: 119/240
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