Add 40/5 and 81/30
1st number: 8 0/5, 2nd number: 2 21/30
40/5 + 81/30 is 107/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
40/5 = 40 × 6/5 × 6 = 240/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Add the two like fractions:
240/30 + 81/30 = 240 + 81/30 = 321/30 - 321/30 simplified gives 107/10
- So, 40/5 + 81/30 = 107/10
In mixed form: 107/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+81/30 40/10+81/30 40/5+81/60 40/15+81/30 40/5+81/90 40/25+81/30 40/35+81/30