Add 90/35 and 60/84, Solve 2 20/35 + 60/84 as a fraction

Add 90/35 and 60/84

1^st number: 2 20/35, 2^nd number: 60/84

90/35 + 60/84 is 23/7.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 35 × 12 = 420,
90/35 = 90 × 12/35 × 12 = 1080/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
60/84 = 60 × 5/84 × 5 = 300/420
Add the two like fractions:
1080/420 + 300/420 = 1080 + 300/420 = 1380/420
1380/420 simplified gives 23/7
So, 90/35 + 60/84 = 23/7
In mixed form: 32/7

MathStep (Works offline)

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