Add 27/40 and 84/7
1st number: 27/40, 2nd number: 12 0/7
27/40 + 84/7 is 507/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
27/40 = 27 × 7/40 × 7 = 189/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
84/7 = 84 × 40/7 × 40 = 3360/280 - Add the two like fractions:
189/280 + 3360/280 = 189 + 3360/280 = 3549/280 - 3549/280 simplified gives 507/40
- So, 27/40 + 84/7 = 507/40
In mixed form: 1227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+84/7 27/80+84/7 27/40+84/14 81/40+84/7 27/40+84/21 27/40+84/35 27/40+84/49