Add 30/3 and 30/40
1st number: 10 0/3, 2nd number: 30/40
30/3 + 30/40 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
30/3 = 30 × 40/3 × 40 = 1200/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Add the two like fractions:
1200/120 + 90/120 = 1200 + 90/120 = 1290/120 - 1290/120 simplified gives 43/4
- So, 30/3 + 30/40 = 43/4
In mixed form: 103/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3+30/40 30/3+60/40 30/6+30/40 30/3+30/80 90/3+30/40 30/3+90/40 30/9+30/40 30/15+30/40 30/21+30/40