Add 15/90 and 84/5
1st number: 15/90, 2nd number: 16 4/5
15/90 + 84/5 is 509/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
84/5 = 84 × 18/5 × 18 = 1512/90 - Add the two like fractions:
15/90 + 1512/90 = 15 + 1512/90 = 1527/90 - 1527/90 simplified gives 509/30
- So, 15/90 + 84/5 = 509/30
In mixed form: 1629/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+84/5 15/90+84/10 45/90+84/5 15/90+84/15 75/90+84/5 15/90+84/25 15/90+84/35