Add 90/2 and 72/15
1st number: 45 0/2, 2nd number: 4 12/15
90/2 + 72/15 is 249/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
90/2 = 90 × 15/2 × 15 = 1350/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30 - Add the two like fractions:
1350/30 + 144/30 = 1350 + 144/30 = 1494/30 - 1494/30 simplified gives 249/5
- So, 90/2 + 72/15 = 249/5
In mixed form: 494/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+72/15 90/2+72/30 90/6+72/15 90/2+72/45 90/10+72/15 90/2+72/75 90/14+72/15