Add 15/60 and 5/40
15/60 + 5/40 is 3/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
15/60 = 15 × 2/60 × 2 = 30/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
5/40 = 5 × 3/40 × 3 = 15/120 - Add the two like fractions:
30/120 + 15/120 = 30 + 15/120 = 45/120 - 45/120 simplified gives 3/8
- So, 15/60 + 5/40 = 3/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+5/40 15/60+10/40 15/60+5/80 45/60+5/40 15/60+15/40 75/60+5/40 15/60+25/40 15/60+35/40