Add 24/21 and 45/5
1st number: 1 3/21, 2nd number: 9 0/5
24/21 + 45/5 is 71/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
24/21 = 24 × 5/21 × 5 = 120/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
45/5 = 45 × 21/5 × 21 = 945/105 - Add the two like fractions:
120/105 + 945/105 = 120 + 945/105 = 1065/105 - 1065/105 simplified gives 71/7
- So, 24/21 + 45/5 = 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: 48/21+45/5 24/21+90/5 24/42+45/5 24/21+45/10 72/21+45/5 24/63+45/5 24/21+45/15 24/21+45/25 24/21+45/35