Add 40/14 and 28/18, Solve 2 12/14 + 1 10/18 as a fraction

Add 40/14 and 28/18

1^st number: 2 12/14, 2^nd number: 1 10/18

40/14 + 28/18 is 278/63.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 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 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126
Add the two like fractions:
360/126 + 196/126 = 360 + 196/126 = 556/126
556/126 simplified gives 278/63
So, 40/14 + 28/18 = 278/63
In mixed form: 426/63

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