Add 9/5 and 15/40
1st number: 1 4/5, 2nd number: 15/40
9/5 + 15/40 is 87/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
9/5 = 9 × 8/5 × 8 = 72/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Add the two like fractions:
72/40 + 15/40 = 72 + 15/40 = 87/40 - So, 9/5 + 15/40 = 87/40
In mixed form: 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5+15/40 9/5+30/40 9/10+15/40 9/5+15/80 27/5+15/40 9/5+45/40 9/15+15/40 45/5+15/40 9/5+75/40 9/25+15/40 63/5+15/40 9/35+15/40