Add 10/9 and 42/60, Solve 1 1/9 + 42/60 as a fraction

Add 10/9 and 42/60

1^st number: 1 1/9, 2^nd number: 42/60

10/9 + 42/60 is 163/90.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 9 × 20 = 180,
10/9 = 10 × 20/9 × 20 = 200/180
Likewise, for the 2nd fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180
Add the two like fractions:
200/180 + 126/180 = 200 + 126/180 = 326/180
326/180 simplified gives 163/90
So, 10/9 + 42/60 = 163/90
In mixed form: 173/90

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