Add 45/84 and 3/7
45/84 + 3/7 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
45/84 = 45 × 1/84 × 1 = 45/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
3/7 = 3 × 12/7 × 12 = 36/84 - Add the two like fractions:
45/84 + 36/84 = 45 + 36/84 = 81/84 - 81/84 simplified gives 27/28
- So, 45/84 + 3/7 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+3/7 45/84+6/7 45/84+3/14 45/84+9/7 45/84+3/21 45/84+15/7 45/84+3/35 45/84+21/7 45/84+3/49