Add 25/60 and 98/70, Solve 25/60 + 1 28/70 as a fraction

Add 25/60 and 98/70

1^st number: 25/60, 2^nd number: 1 28/70

25/60 + 98/70 is 109/60.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
25/60 = 25 × 7/60 × 7 = 175/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
98/70 = 98 × 6/70 × 6 = 588/420
Add the two like fractions:
175/420 + 588/420 = 175 + 588/420 = 763/420
763/420 simplified gives 109/60
So, 25/60 + 98/70 = 109/60
In mixed form: 149/60

MathStep (Works offline)

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