Add 90/84 and 3/4
1st number: 1 6/84, 2nd number: 3/4
90/84 + 3/4 is 51/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
90/84 = 90 × 1/84 × 1 = 90/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
3/4 = 3 × 21/4 × 21 = 63/84 - Add the two like fractions:
90/84 + 63/84 = 90 + 63/84 = 153/84 - 153/84 simplified gives 51/28
- So, 90/84 + 3/4 = 51/28
In mixed form: 123/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+6/4 90/84+3/8 90/84+9/4 90/84+3/12 90/84+15/4 90/84+3/20 90/84+21/4 90/84+3/28