Add 50/40 and 30/15
1st number: 1 10/40, 2nd number: 2 0/15
50/40 + 30/15 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
50/40 = 50 × 3/40 × 3 = 150/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Add the two like fractions:
150/120 + 240/120 = 150 + 240/120 = 390/120 - 390/120 simplified gives 13/4
- So, 50/40 + 30/15 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40+60/15 50/80+30/15 50/40+90/15 50/40+30/45 50/40+30/75