Subtract 42/45 from 40/14, Solve 2 12/14

Subtract 42/45 from 40/14

1^st number: 2 12/14, 2^nd number: 42/45

40/14 - 42/45 is 202/105.

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,
40/14 = 40 × 45/14 × 45 = 1800/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
42/45 = 42 × 14/45 × 14 = 588/630
Subtract the two like fractions:
1800/630 - 588/630 = 1800 - 588/630 = 1212/630
After reducing the fraction, the answer is 202/105
In mixed form: 197/105

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