Subtract 30/45 from 20/16, Solve 1 4/16

Subtract 30/45 from 20/16

1^st number: 1 4/16, 2^nd number: 30/45

20/16 - 30/45 is 7/12.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 16 × 45 = 720,
20/16 = 20 × 45/16 × 45 = 900/720
Likewise, for the 2nd fraction, since 45 × 16 = 720,
30/45 = 30 × 16/45 × 16 = 480/720
Subtract the two like fractions:
900/720 - 480/720 = 900 - 480/720 = 420/720
After reducing the fraction, the answer is 7/12

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