Add 45/12 and 32/28
1st number: 3 9/12, 2nd number: 1 4/28
45/12 + 32/28 is 137/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
32/28 = 32 × 3/28 × 3 = 96/84 - Add the two like fractions:
315/84 + 96/84 = 315 + 96/84 = 411/84 - 411/84 simplified gives 137/28
- So, 45/12 + 32/28 = 137/28
In mixed form: 425/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+32/28 45/12+64/28 45/24+32/28 45/12+32/56 45/12+96/28 45/36+32/28 45/12+32/84 45/60+32/28 45/84+32/28