Add 7/5 and 84/90
1st number: 1 2/5, 2nd number: 84/90
7/5 + 84/90 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
7/5 = 7 × 18/5 × 18 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
126/90 + 84/90 = 126 + 84/90 = 210/90 - 210/90 simplified gives 7/3
- So, 7/5 + 84/90 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5+84/90 7/10+84/90 21/5+84/90 7/15+84/90 35/5+84/90 7/25+84/90 49/5+84/90 7/35+84/90