Add 18/10 and 50/21, Solve 1 8/10 + 2 8/21 as a fraction

Add 18/10 and 50/21

1^st number: 1 8/10, 2^nd number: 2 8/21

18/10 + 50/21 is 439/105.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
18/10 = 18 × 21/10 × 21 = 378/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
50/21 = 50 × 10/21 × 10 = 500/210
Add the two like fractions:
378/210 + 500/210 = 378 + 500/210 = 878/210
878/210 simplified gives 439/105
So, 18/10 + 50/21 = 439/105
In mixed form: 419/105

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