Subtract 2/80 from 15/12, Solve 1 3/12

Subtract 2/80 from 15/12

1^st number: 1 3/12, 2^nd number: 2/80

15/12 - 2/80 is 49/40.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 12 × 20 = 240,
15/12 = 15 × 20/12 × 20 = 300/240
Likewise, for the 2nd fraction, since 80 × 3 = 240,
2/80 = 2 × 3/80 × 3 = 6/240
Subtract the two like fractions:
300/240 - 6/240 = 300 - 6/240 = 294/240
After reducing the fraction, the answer is 49/40
In mixed form: 19/40

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