Add 9/50 and 98/70, Solve 9/50 + 1 28/70 as a fraction

Add 9/50 and 98/70

1^st number: 9/50, 2^nd number: 1 28/70

9/50 + 98/70 is 79/50.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 50 × 7 = 350,
9/50 = 9 × 7/50 × 7 = 63/350
Likewise, for the 2nd fraction, since 70 × 5 = 350,
98/70 = 98 × 5/70 × 5 = 490/350
Add the two like fractions:
63/350 + 490/350 = 63 + 490/350 = 553/350
553/350 simplified gives 79/50
So, 9/50 + 98/70 = 79/50
In mixed form: 129/50

MathStep (Works offline)

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