Add 64/90 and 2/15
64/90 + 2/15 is 38/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
64/90 = 64 × 1/90 × 1 = 64/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
2/15 = 2 × 6/15 × 6 = 12/90 - Add the two like fractions:
64/90 + 12/90 = 64 + 12/90 = 76/90 - 76/90 simplified gives 38/45
- So, 64/90 + 2/15 = 38/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/90+4/15 64/90+2/30 64/90+6/15 64/90+2/45 64/90+10/15 64/90+2/75 64/90+14/15