Add 70/90 and 27/8
1st number: 70/90, 2nd number: 3 3/8
70/90 + 27/8 is 299/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
70/90 = 70 × 4/90 × 4 = 280/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
27/8 = 27 × 45/8 × 45 = 1215/360 - Add the two like fractions:
280/360 + 1215/360 = 280 + 1215/360 = 1495/360 - 1495/360 simplified gives 299/72
- So, 70/90 + 27/8 = 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: 70/90+54/8 70/90+27/16 70/90+81/8 70/90+27/24 70/90+27/40 70/90+27/56