Subtract 5/80 from 30/49, Solve 30/49

Subtract 5/80 from 30/49

30/49 - 5/80 is 431/784.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 49 × 80 = 3920,
30/49 = 30 × 80/49 × 80 = 2400/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
5/80 = 5 × 49/80 × 49 = 245/3920
Subtract the two like fractions:
2400/3920 - 245/3920 = 2400 - 245/3920 = 2155/3920
After reducing the fraction, the answer is 431/784

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