Add 42/45 and 15/10, Solve 42/45 + 1 5/10 as a fraction

Add 42/45 and 15/10

1^st number: 42/45, 2^nd number: 1 5/10

42/45 + 15/10 is 73/30.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90
Likewise, for the 2nd fraction, since 10 × 9 = 90,
15/10 = 15 × 9/10 × 9 = 135/90
Add the two like fractions:
84/90 + 135/90 = 84 + 135/90 = 219/90
219/90 simplified gives 73/30
So, 42/45 + 15/10 = 73/30
In mixed form: 213/30

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