Add 10/21 and 60/18, Solve 10/21 + 3 6/18 as a fraction

Add 10/21 and 60/18

1^st number: 10/21, 2^nd number: 3 6/18

10/21 + 60/18 is 80/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
10/21 = 10 × 6/21 × 6 = 60/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
60/18 = 60 × 7/18 × 7 = 420/126
Add the two like fractions:
60/126 + 420/126 = 60 + 420/126 = 480/126
480/126 simplified gives 80/21
So, 10/21 + 60/18 = 80/21
In mixed form: 317/21

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