Add 40/12 and 45/4
1st number: 3 4/12, 2nd number: 11 1/4
40/12 + 45/4 is 175/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
40/12 = 40 × 1/12 × 1 = 40/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
45/4 = 45 × 3/4 × 3 = 135/12 - Add the two like fractions:
40/12 + 135/12 = 40 + 135/12 = 175/12 - So, 40/12 + 45/4 = 175/12
In mixed form: 147/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+45/4 40/12+90/4 40/24+45/4 40/12+45/8 40/36+45/4 40/12+45/12 40/60+45/4 40/12+45/20 40/84+45/4 40/12+45/28