Add 45/21 and 6/5
1st number: 2 3/21, 2nd number: 1 1/5
45/21 + 6/5 is 117/35.
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,
45/21 = 45 × 5/21 × 5 = 225/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
6/5 = 6 × 21/5 × 21 = 126/105 - Add the two like fractions:
225/105 + 126/105 = 225 + 126/105 = 351/105 - 351/105 simplified gives 117/35
- So, 45/21 + 6/5 = 117/35
In mixed form: 312/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+6/5 45/21+12/5 45/42+6/5 45/21+6/10 45/21+18/5 45/63+6/5 45/21+6/15 45/21+30/5 45/21+6/25 45/21+42/5 45/21+6/35