Add 20/42 and 49/10, Solve 20/42 + 4 9/10 as a fraction

Add 20/42 and 49/10

1^st number: 20/42, 2^nd number: 4 9/10

20/42 + 49/10 is 1129/210.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
49/10 = 49 × 21/10 × 21 = 1029/210
Add the two like fractions:
100/210 + 1029/210 = 100 + 1029/210 = 1129/210
So, 20/42 + 49/10 = 1129/210
In mixed form: 579/210

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