Add 40/15 and 25/30
1st number: 2 10/15, 2nd number: 25/30
40/15 + 25/30 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
40/15 = 40 × 2/15 × 2 = 80/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
25/30 = 25 × 1/30 × 1 = 25/30 - Add the two like fractions:
80/30 + 25/30 = 80 + 25/30 = 105/30 - 105/30 simplified gives 7/2
- So, 40/15 + 25/30 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+25/30 40/15+50/30 40/30+25/30 40/15+25/60 40/15+75/30 40/45+25/30 40/15+25/90 40/75+25/30