Add 21/36 and 45/28, Solve 21/36 + 1 17/28 as a fraction

Add 21/36 and 45/28

1^st number: 21/36, 2^nd number: 1 17/28

21/36 + 45/28 is 46/21.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252
Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252
Add the two like fractions:
147/252 + 405/252 = 147 + 405/252 = 552/252
552/252 simplified gives 46/21
So, 21/36 + 45/28 = 46/21
In mixed form: 24/21

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