Subtract 42/80 from 30/14, Solve 2 2/14

Subtract 42/80 from 30/14

1^st number: 2 2/14, 2^nd number: 42/80

30/14 - 42/80 is 453/280.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 14 × 40 = 560,
30/14 = 30 × 40/14 × 40 = 1200/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560
Subtract the two like fractions:
1200/560 - 294/560 = 1200 - 294/560 = 906/560
After reducing the fraction, the answer is 453/280
In mixed form: 1173/280

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