Add 45/9 and 40/42, Solve 5 0/9 + 40/42 as a fraction

Add 45/9 and 40/42

1^st number: 5 0/9, 2^nd number: 40/42

45/9 + 40/42 is 125/21.

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,
40/42 = 40 × 3/42 × 3 = 120/126
Add the two like fractions:
630/126 + 120/126 = 630 + 120/126 = 750/126
750/126 simplified gives 125/21
So, 45/9 + 40/42 = 125/21
In mixed form: 520/21

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