Add 75/40 and 30/12
1st number: 1 35/40, 2nd number: 2 6/12
75/40 + 30/12 is 35/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
75/40 = 75 × 3/40 × 3 = 225/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
30/12 = 30 × 10/12 × 10 = 300/120 - Add the two like fractions:
225/120 + 300/120 = 225 + 300/120 = 525/120 - 525/120 simplified gives 35/8
- So, 75/40 + 30/12 = 35/8
In mixed form: 43/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+60/12 75/80+30/12 75/40+30/24 75/40+90/12 75/40+30/36 75/40+30/60 75/40+30/84