Add 18/10 and 5/42, Solve 1 8/10 + 5/42 as a fraction

Add 18/10 and 5/42

1^st number: 1 8/10, 2^nd number: 5/42

18/10 + 5/42 is 403/210.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 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 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210
Add the two like fractions:
378/210 + 25/210 = 378 + 25/210 = 403/210
So, 18/10 + 5/42 = 403/210
In mixed form: 1193/210

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