Add 90/60 and 3/15
1st number: 1 30/60, 2nd number: 3/15
90/60 + 3/15 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
3/15 = 3 × 4/15 × 4 = 12/60 - Add the two like fractions:
90/60 + 12/60 = 90 + 12/60 = 102/60 - 102/60 simplified gives 17/10
- So, 90/60 + 3/15 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+6/15 90/60+3/30 90/60+9/15 90/60+3/45 90/60+3/75 90/60+21/15