Add 42/6 and 45/81
1st number: 7 0/6, 2nd number: 45/81
42/6 + 45/81 is 68/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
42/6 = 42 × 27/6 × 27 = 1134/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
45/81 = 45 × 2/81 × 2 = 90/162 - Add the two like fractions:
1134/162 + 90/162 = 1134 + 90/162 = 1224/162 - 1224/162 simplified gives 68/9
- So, 42/6 + 45/81 = 68/9
In mixed form: 75/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6+45/81 42/6+90/81 42/12+45/81 42/18+45/81 42/30+45/81