Add 4/10 and 42/16, Solve 4/10 + 2 10/16 as a fraction

Add 4/10 and 42/16

1^st number: 4/10, 2^nd number: 2 10/16

4/10 + 42/16 is 121/40.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 16 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 10 × 8 = 80,
4/10 = 4 × 8/10 × 8 = 32/80
Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80
Add the two like fractions:
32/80 + 210/80 = 32 + 210/80 = 242/80
242/80 simplified gives 121/40
So, 4/10 + 42/16 = 121/40
In mixed form: 31/40

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