Add 8/28 and 98/42, Solve 8/28 + 2 14/42 as a fraction

Add 8/28 and 98/42

1^st number: 8/28, 2^nd number: 2 14/42

8/28 + 98/42 is 55/21.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 28 × 3 = 84,
8/28 = 8 × 3/28 × 3 = 24/84
Likewise, for the 2nd fraction, since 42 × 2 = 84,
98/42 = 98 × 2/42 × 2 = 196/84
Add the two like fractions:
24/84 + 196/84 = 24 + 196/84 = 220/84
220/84 simplified gives 55/21
So, 8/28 + 98/42 = 55/21
In mixed form: 213/21

MathStep (Works offline)

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