Subtract 42/30 from 14/80, Solve 14/80

Subtract 42/30 from 14/80

1^st number: 14/80, 2^nd number: 1 12/30

14/80 - 42/30 is -49/40.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
14/80 = 14 × 3/80 × 3 = 42/240
Likewise, for the 2nd fraction, since 30 × 8 = 240,
42/30 = 42 × 8/30 × 8 = 336/240
Subtract the two like fractions:
42/240 - 336/240 = 42 - 336/240 = -294/240
After reducing the fraction, the answer is -49/40

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