Subtract 80/45 from 98/42, Solve 2 14/42

Subtract 80/45 from 98/42

1^st number: 2 14/42, 2^nd number: 1 35/45

98/42 - 80/45 is 5/9.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
98/42 = 98 × 15/42 × 15 = 1470/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
80/45 = 80 × 14/45 × 14 = 1120/630
Subtract the two like fractions:
1470/630 - 1120/630 = 1470 - 1120/630 = 350/630
After reducing the fraction, the answer is 5/9

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