Add 18/42 and 72/5, Solve 18/42 + 14 2/5 as a fraction

Add 18/42 and 72/5

1^st number: 18/42, 2^nd number: 14 2/5

18/42 + 72/5 is 519/35.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210
Likewise, for the 2nd fraction, since 5 × 42 = 210,
72/5 = 72 × 42/5 × 42 = 3024/210
Add the two like fractions:
90/210 + 3024/210 = 90 + 3024/210 = 3114/210
3114/210 simplified gives 519/35
So, 18/42 + 72/5 = 519/35
In mixed form: 1429/35

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