Add 45/9 and 21/42, Solve 5 0/9 + 21/42 as a fraction

Add 45/9 and 21/42

1^st number: 5 0/9, 2^nd number: 21/42

45/9 + 21/42 is 11/2.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 9 × 14 = 126,
45/9 = 45 × 14/9 × 14 = 630/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
21/42 = 21 × 3/42 × 3 = 63/126
Add the two like fractions:
630/126 + 63/126 = 630 + 63/126 = 693/126
693/126 simplified gives 11/2
So, 45/9 + 21/42 = 11/2
In mixed form: 51/2

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