Add 81/6 and 7/40
1st number: 13 3/6, 2nd number: 7/40
81/6 + 7/40 is 547/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
81/6 = 81 × 20/6 × 20 = 1620/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Add the two like fractions:
1620/120 + 21/120 = 1620 + 21/120 = 1641/120 - 1641/120 simplified gives 547/40
- So, 81/6 + 7/40 = 547/40
In mixed form: 1327/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6+14/40 81/12+7/40 81/6+7/80 81/6+21/40 81/18+7/40 81/6+35/40 81/30+7/40 81/6+49/40 81/42+7/40