Add 7/2 and 90/10
1st number: 3 1/2, 2nd number: 9 0/10
7/2 + 90/10 is 25/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
7/2 = 7 × 5/2 × 5 = 35/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
90/10 = 90 × 1/10 × 1 = 90/10 - Add the two like fractions:
35/10 + 90/10 = 35 + 90/10 = 125/10 - 125/10 simplified gives 25/2
- So, 7/2 + 90/10 = 25/2
In mixed form: 121/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+90/10 7/4+90/10 7/2+90/20 21/2+90/10 7/6+90/10 7/2+90/30 35/2+90/10 7/10+90/10 7/2+90/50 49/2+90/10 7/14+90/10 7/2+90/70