Add 21/9 and 12/56, Solve 2 3/9 + 12/56 as a fraction

Add 21/9 and 12/56

1^st number: 2 3/9, 2^nd number: 12/56

21/9 + 12/56 is 107/42.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 9 × 56 = 504,
21/9 = 21 × 56/9 × 56 = 1176/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
12/56 = 12 × 9/56 × 9 = 108/504
Add the two like fractions:
1176/504 + 108/504 = 1176 + 108/504 = 1284/504
1284/504 simplified gives 107/42
So, 21/9 + 12/56 = 107/42
In mixed form: 223/42

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