Add 6/21 and 42/10, Solve 6/21 + 4 2/10 as a fraction

Add 6/21 and 42/10

1^st number: 6/21, 2^nd number: 4 2/10

6/21 + 42/10 is 157/35.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
6/21 = 6 × 10/21 × 10 = 60/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
42/10 = 42 × 21/10 × 21 = 882/210
Add the two like fractions:
60/210 + 882/210 = 60 + 882/210 = 942/210
942/210 simplified gives 157/35
So, 6/21 + 42/10 = 157/35
In mixed form: 417/35

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