Add 27/40 and 30/3
1st number: 27/40, 2nd number: 10 0/3
27/40 + 30/3 is 427/40.
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,
27/40 = 27 × 3/40 × 3 = 81/120 - Likewise, for the 2nd fraction, since 3 × 40 = 120,
30/3 = 30 × 40/3 × 40 = 1200/120 - Add the two like fractions:
81/120 + 1200/120 = 81 + 1200/120 = 1281/120 - 1281/120 simplified gives 427/40
- So, 27/40 + 30/3 = 427/40
In mixed form: 1027/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+30/3 27/40+60/3 27/80+30/3 27/40+30/6 81/40+30/3 27/40+90/3 27/40+30/9 27/40+30/15 27/40+30/21