Add 15/4 and 90/30
1st number: 3 3/4, 2nd number: 3 0/30
15/4 + 90/30 is 27/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
15/4 = 15 × 15/4 × 15 = 225/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
90/30 = 90 × 2/30 × 2 = 180/60 - Add the two like fractions:
225/60 + 180/60 = 225 + 180/60 = 405/60 - 405/60 simplified gives 27/4
- So, 15/4 + 90/30 = 27/4
In mixed form: 63/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+90/30 15/8+90/30 15/4+90/60 45/4+90/30 15/12+90/30 75/4+90/30 15/20+90/30 15/28+90/30