Add 28/25 and 63/35, Solve 1 3/25 + 1 28/35 as a fraction

Add 28/25 and 63/35

1^st number: 1 3/25, 2^nd number: 1 28/35

28/25 + 63/35 is 73/25.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 35 is 175

Next, find the equivalent fraction of both fractional numbers with denominator 175
For the 1st fraction, since 25 × 7 = 175,
28/25 = 28 × 7/25 × 7 = 196/175
Likewise, for the 2nd fraction, since 35 × 5 = 175,
63/35 = 63 × 5/35 × 5 = 315/175
Add the two like fractions:
196/175 + 315/175 = 196 + 315/175 = 511/175
511/175 simplified gives 73/25
So, 28/25 + 63/35 = 73/25
In mixed form: 223/25

MathStep (Works offline)

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