Add 90/30 and 15/10
1st number: 3 0/30, 2nd number: 1 5/10
90/30 + 15/10 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
15/10 = 15 × 3/10 × 3 = 45/30 - Add the two like fractions:
90/30 + 45/30 = 90 + 45/30 = 135/30 - 135/30 simplified gives 9/2
- So, 90/30 + 15/10 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+30/10 90/60+15/10 90/30+15/20 90/30+45/10 90/30+15/30 90/30+75/10 90/30+15/50 90/30+15/70