Subtract 18/45 from 20/14, Solve 1 6/14

Subtract 18/45 from 20/14

1^st number: 1 6/14, 2^nd number: 18/45

20/14 - 18/45 is 36/35.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 14 × 45 = 630,
20/14 = 20 × 45/14 × 45 = 900/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630
Subtract the two like fractions:
900/630 - 252/630 = 900 - 252/630 = 648/630
After reducing the fraction, the answer is 36/35
In mixed form: 11/35

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