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

Subtract 20/14 from 1/45

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

1/45 - 20/14 is -443/315.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
1/45 = 1 × 14/45 × 14 = 14/630
Likewise, for the 2nd fraction, since 14 × 45 = 630,
20/14 = 20 × 45/14 × 45 = 900/630
Subtract the two like fractions:
14/630 - 900/630 = 14 - 900/630 = -886/630
After reducing the fraction, the answer is -443/315

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