Add 28/21 and 48/98, Solve 1 7/21 + 48/98 as a fraction

Add 28/21 and 48/98

1^st number: 1 7/21, 2^nd number: 48/98

28/21 + 48/98 is 268/147.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 21 × 14 = 294,
28/21 = 28 × 14/21 × 14 = 392/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
48/98 = 48 × 3/98 × 3 = 144/294
Add the two like fractions:
392/294 + 144/294 = 392 + 144/294 = 536/294
536/294 simplified gives 268/147
So, 28/21 + 48/98 = 268/147
In mixed form: 1121/147

MathStep (Works offline)

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