Add 90/15 and 30/4
1st number: 6 0/15, 2nd number: 7 2/4
90/15 + 30/4 is 27/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
90/15 = 90 × 4/15 × 4 = 360/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
30/4 = 30 × 15/4 × 15 = 450/60 - Add the two like fractions:
360/60 + 450/60 = 360 + 450/60 = 810/60 - 810/60 simplified gives 27/2
- So, 90/15 + 30/4 = 27/2
In mixed form: 131/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+60/4 90/30+30/4 90/15+30/8 90/15+90/4 90/45+30/4 90/15+30/12 90/75+30/4 90/15+30/20 90/15+30/28