Add 90/84 and 5/35
1st number: 1 6/84, 2nd number: 5/35
90/84 + 5/35 is 17/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
5/35 = 5 × 12/35 × 12 = 60/420 - Add the two like fractions:
450/420 + 60/420 = 450 + 60/420 = 510/420 - 510/420 simplified gives 17/14
- So, 90/84 + 5/35 = 17/14
In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+10/35 90/84+5/70 90/84+15/35 90/84+25/35