Add 7/40 and 30/12
1st number: 7/40, 2nd number: 2 6/12
7/40 + 30/12 is 107/40.
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,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
30/12 = 30 × 10/12 × 10 = 300/120 - Add the two like fractions:
21/120 + 300/120 = 21 + 300/120 = 321/120 - 321/120 simplified gives 107/40
- So, 7/40 + 30/12 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40+30/12 7/40+60/12 7/80+30/12 7/40+30/24 21/40+30/12 7/40+90/12 7/40+30/36 35/40+30/12 7/40+30/60 49/40+30/12 7/40+30/84