Add 84/42 and 27/90, Solve 2 0/42 + 27/90 as a fraction

Add 84/42 and 27/90

1^st number: 2 0/42, 2^nd number: 27/90

84/42 + 27/90 is 23/10.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
84/42 = 84 × 15/42 × 15 = 1260/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
27/90 = 27 × 7/90 × 7 = 189/630
Add the two like fractions:
1260/630 + 189/630 = 1260 + 189/630 = 1449/630
1449/630 simplified gives 23/10
So, 84/42 + 27/90 = 23/10
In mixed form: 23/10

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