Add 18/72 and 81/28, Solve 18/72 + 2 25/28 as a fraction

Add 18/72 and 81/28

1^st number: 18/72, 2^nd number: 2 25/28

18/72 + 81/28 is 22/7.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504
Likewise, for the 2nd fraction, since 28 × 18 = 504,
81/28 = 81 × 18/28 × 18 = 1458/504
Add the two like fractions:
126/504 + 1458/504 = 126 + 1458/504 = 1584/504
1584/504 simplified gives 22/7
So, 18/72 + 81/28 = 22/7
In mixed form: 31/7

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