Add 24/35 and 45/12
1st number: 24/35, 2nd number: 3 9/12
24/35 + 45/12 is 621/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
24/35 = 24 × 12/35 × 12 = 288/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420 - Add the two like fractions:
288/420 + 1575/420 = 288 + 1575/420 = 1863/420 - 1863/420 simplified gives 621/140
- So, 24/35 + 45/12 = 621/140
In mixed form: 461/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/35+45/12 24/35+90/12 24/70+45/12 24/35+45/24 72/35+45/12 24/35+45/36 24/35+45/60 24/35+45/84