Add 21/18 and 12/56, Solve 1 3/18 + 12/56 as a fraction

Add 21/18 and 12/56

1^st number: 1 3/18, 2^nd number: 12/56

21/18 + 12/56 is 29/21.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 18 × 28 = 504,
21/18 = 21 × 28/18 × 28 = 588/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
12/56 = 12 × 9/56 × 9 = 108/504
Add the two like fractions:
588/504 + 108/504 = 588 + 108/504 = 696/504
696/504 simplified gives 29/21
So, 21/18 + 12/56 = 29/21
In mixed form: 18/21

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