Subtract 80/35 from 10/18, Solve 10/18

Subtract 80/35 from 10/18

1^st number: 10/18, 2^nd number: 2 10/35

10/18 - 80/35 is -109/63.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
10/18 = 10 × 35/18 × 35 = 350/630
Likewise, for the 2nd fraction, since 35 × 18 = 630,
80/35 = 80 × 18/35 × 18 = 1440/630
Subtract the two like fractions:
350/630 - 1440/630 = 350 - 1440/630 = -1090/630
After reducing the fraction, the answer is -109/63

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