Add 15/45 and 90/5
1st number: 15/45, 2nd number: 18 0/5
15/45 + 90/5 is 55/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
15/45 = 15 × 1/45 × 1 = 15/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
90/5 = 90 × 9/5 × 9 = 810/45 - Add the two like fractions:
15/45 + 810/45 = 15 + 810/45 = 825/45 - 825/45 simplified gives 55/3
- So, 15/45 + 90/5 = 55/3
In mixed form: 181/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45+90/5 15/90+90/5 15/45+90/10 15/45+90/15 75/45+90/5 15/45+90/25 15/45+90/35