Subtract 80/50 from 10/18, Solve 10/18

Subtract 80/50 from 10/18

1^st number: 10/18, 2^nd number: 1 30/50

10/18 - 80/50 is -47/45.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
10/18 = 10 × 25/18 × 25 = 250/450
Likewise, for the 2nd fraction, since 50 × 9 = 450,
80/50 = 80 × 9/50 × 9 = 720/450
Subtract the two like fractions:
250/450 - 720/450 = 250 - 720/450 = -470/450
After reducing the fraction, the answer is -47/45

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