Add 75/15 and 30/40
1st number: 5 0/15, 2nd number: 30/40
75/15 + 30/40 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
75/15 = 75 × 8/15 × 8 = 600/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Add the two like fractions:
600/120 + 90/120 = 600 + 90/120 = 690/120 - 690/120 simplified gives 23/4
- So, 75/15 + 30/40 = 23/4
In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/15+60/40 75/30+30/40 75/15+30/80 75/15+90/40 75/45+30/40