Add 54/6 and 24/21
1st number: 9 0/6, 2nd number: 1 3/21
54/6 + 24/21 is 71/7.
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,
24/21 = 24 × 2/21 × 2 = 48/42 - Add the two like fractions:
378/42 + 48/42 = 378 + 48/42 = 426/42 - 426/42 simplified gives 71/7
- So, 54/6 + 24/21 = 71/7
In mixed form: 101/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/6+48/21 54/12+24/21 54/6+24/42 54/6+72/21 54/18+24/21 54/6+24/63 54/30+24/21 54/42+24/21