Add 30/40 and 30/10
1st number: 30/40, 2nd number: 3 0/10
30/40 + 30/10 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
30/10 = 30 × 4/10 × 4 = 120/40 - Add the two like fractions:
30/40 + 120/40 = 30 + 120/40 = 150/40 - 150/40 simplified gives 15/4
- So, 30/40 + 30/10 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+30/10 30/40+60/10 30/80+30/10 30/40+30/20 90/40+30/10 30/40+90/10 30/40+30/50 30/40+30/70