Add 7/5 and 42/90, Solve 1 2/5 + 42/90 as a fraction

Add 7/5 and 42/90

1^st number: 1 2/5, 2^nd number: 42/90

7/5 + 42/90 is 28/15.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 5 × 18 = 90,
7/5 = 7 × 18/5 × 18 = 126/90
Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90
Add the two like fractions:
126/90 + 42/90 = 126 + 42/90 = 168/90
168/90 simplified gives 28/15
So, 7/5 + 42/90 = 28/15
In mixed form: 113/15

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