Subtract 1/9 from 40/14, Solve 2 12/14

Subtract 1/9 from 40/14

1^st number: 2 12/14, 2^nd number: 1/9

40/14 - 1/9 is 173/63.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
40/14 = 40 × 9/14 × 9 = 360/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
1/9 = 1 × 14/9 × 14 = 14/126
Subtract the two like fractions:
360/126 - 14/126 = 360 - 14/126 = 346/126
After reducing the fraction, the answer is 173/63
In mixed form: 247/63

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