Add 81/18 and 40/14, Solve 4 9/18 + 2 12/14 as a fraction

Add 81/18 and 40/14

1^st number: 4 9/18, 2^nd number: 2 12/14

81/18 + 40/14 is 103/14.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
81/18 = 81 × 7/18 × 7 = 567/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
40/14 = 40 × 9/14 × 9 = 360/126
Add the two like fractions:
567/126 + 360/126 = 567 + 360/126 = 927/126
927/126 simplified gives 103/14
So, 81/18 + 40/14 = 103/14
In mixed form: 75/14

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