Add 54/6 and 40/21
1st number: 9 0/6, 2nd number: 1 19/21
54/6 + 40/21 is 229/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
54/6 = 54 × 7/6 × 7 = 378/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
40/21 = 40 × 2/21 × 2 = 80/42 - Add the two like fractions:
378/42 + 80/42 = 378 + 80/42 = 458/42 - 458/42 simplified gives 229/21
- So, 54/6 + 40/21 = 229/21
In mixed form: 1019/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/6+80/21 54/12+40/21 54/6+40/42 54/18+40/21 54/6+40/63 54/30+40/21 54/42+40/21