Add 5/4 and 90/84
1st number: 1 1/4, 2nd number: 1 6/84
5/4 + 90/84 is 65/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
5/4 = 5 × 21/4 × 21 = 105/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
90/84 = 90 × 1/84 × 1 = 90/84 - Add the two like fractions:
105/84 + 90/84 = 105 + 90/84 = 195/84 - 195/84 simplified gives 65/28
- So, 5/4 + 90/84 = 65/28
In mixed form: 29/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/4+90/84 5/8+90/84 15/4+90/84 5/12+90/84 25/4+90/84 5/20+90/84 35/4+90/84 5/28+90/84