Add 84/45 and 10/90
1st number: 1 39/45, 2nd number: 10/90
84/45 + 10/90 is 89/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Add the two like fractions:
168/90 + 10/90 = 168 + 10/90 = 178/90 - 178/90 simplified gives 89/45
- So, 84/45 + 10/90 = 89/45
In mixed form: 144/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+20/90 84/90+10/90 84/45+30/90 84/45+50/90 84/45+70/90