Add 45/12 and 35/40
1st number: 3 9/12, 2nd number: 35/40
45/12 + 35/40 is 37/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
45/12 = 45 × 10/12 × 10 = 450/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
35/40 = 35 × 3/40 × 3 = 105/120 - Add the two like fractions:
450/120 + 105/120 = 450 + 105/120 = 555/120 - 555/120 simplified gives 37/8
- So, 45/12 + 35/40 = 37/8
In mixed form: 45/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+35/40 45/12+70/40 45/24+35/40 45/12+35/80 45/36+35/40 45/60+35/40 45/84+35/40