Add 30/18 and 72/56, Solve 1 12/18 + 1 16/56 as a fraction

Add 30/18 and 72/56

1^st number: 1 12/18, 2^nd number: 1 16/56

30/18 + 72/56 is 62/21.

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,
30/18 = 30 × 28/18 × 28 = 840/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
72/56 = 72 × 9/56 × 9 = 648/504
Add the two like fractions:
840/504 + 648/504 = 840 + 648/504 = 1488/504
1488/504 simplified gives 62/21
So, 30/18 + 72/56 = 62/21
In mixed form: 220/21

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