Add 27/8 and 70/90
1st number: 3 3/8, 2nd number: 70/90
27/8 + 70/90 is 299/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
27/8 = 27 × 45/8 × 45 = 1215/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
70/90 = 70 × 4/90 × 4 = 280/360 - Add the two like fractions:
1215/360 + 280/360 = 1215 + 280/360 = 1495/360 - 1495/360 simplified gives 299/72
- So, 27/8 + 70/90 = 299/72
In mixed form: 411/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+70/90 27/16+70/90 81/8+70/90 27/24+70/90 27/40+70/90 27/56+70/90