Add 90/15 and 20/5
1st number: 6 0/15, 2nd number: 4 0/5
90/15 + 20/5 is 10/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
90/15 = 90 × 1/15 × 1 = 90/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
20/5 = 20 × 3/5 × 3 = 60/15 - Add the two like fractions:
90/15 + 60/15 = 90 + 60/15 = 150/15 - 150/15 simplified gives 10/1
- So, 90/15 + 20/5 = 10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+40/5 90/30+20/5 90/15+20/10 90/15+60/5 90/45+20/5 90/15+20/15 90/75+20/5 90/15+20/25 90/15+20/35