Subtract 80/14 from 60/45, Solve 1 15/45

Subtract 80/14 from 60/45

1^st number: 1 15/45, 2^nd number: 5 10/14

60/45 - 80/14 is -92/21.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
60/45 = 60 × 14/45 × 14 = 840/630
Likewise, for the 2nd fraction, since 14 × 45 = 630,
80/14 = 80 × 45/14 × 45 = 3600/630
Subtract the two like fractions:
840/630 - 3600/630 = 840 - 3600/630 = -2760/630
After reducing the fraction, the answer is -92/21

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