Add 81/18 and 20/28, Solve 4 9/18 + 20/28 as a fraction

Add 81/18 and 20/28

1^st number: 4 9/18, 2^nd number: 20/28

81/18 + 20/28 is 73/14.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 18 × 14 = 252,
81/18 = 81 × 14/18 × 14 = 1134/252
Likewise, for the 2nd fraction, since 28 × 9 = 252,
20/28 = 20 × 9/28 × 9 = 180/252
Add the two like fractions:
1134/252 + 180/252 = 1134 + 180/252 = 1314/252
1314/252 simplified gives 73/14
So, 81/18 + 20/28 = 73/14
In mixed form: 53/14

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