Add 10/12 and 42/80, Solve 10/12 + 42/80 as a fraction

Add 10/12 and 42/80

10/12 + 42/80 is 163/120.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 12 × 20 = 240,
10/12 = 10 × 20/12 × 20 = 200/240
Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240
Add the two like fractions:
200/240 + 126/240 = 200 + 126/240 = 326/240
326/240 simplified gives 163/120
So, 10/12 + 42/80 = 163/120
In mixed form: 143/120

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