Add 30/40 and 56/3
1st number: 30/40, 2nd number: 18 2/3
30/40 + 56/3 is 233/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Likewise, for the 2nd fraction, since 3 × 40 = 120,
56/3 = 56 × 40/3 × 40 = 2240/120 - Add the two like fractions:
90/120 + 2240/120 = 90 + 2240/120 = 2330/120 - 2330/120 simplified gives 233/12
- So, 30/40 + 56/3 = 233/12
In mixed form: 195/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+56/3 30/80+56/3 30/40+56/6 90/40+56/3 30/40+56/9 30/40+56/15 30/40+56/21