Add 42/8 and 42/16, Solve 5 2/8 + 2 10/16 as a fraction

Add 42/8 and 42/16

1^st number: 5 2/8, 2^nd number: 2 10/16

42/8 + 42/16 is 63/8.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 16 is 16

Next, find the equivalent fraction of both fractional numbers with denominator 16
For the 1st fraction, since 8 × 2 = 16,
42/8 = 42 × 2/8 × 2 = 84/16
Likewise, for the 2nd fraction, since 16 × 1 = 16,
42/16 = 42 × 1/16 × 1 = 42/16
Add the two like fractions:
84/16 + 42/16 = 84 + 42/16 = 126/16
126/16 simplified gives 63/8
So, 42/8 + 42/16 = 63/8
In mixed form: 77/8

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad