Add 64/12 and 3/90
1st number: 5 4/12, 2nd number: 3/90
64/12 + 3/90 is 161/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
64/12 = 64 × 15/12 × 15 = 960/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
3/90 = 3 × 2/90 × 2 = 6/180 - Add the two like fractions:
960/180 + 6/180 = 960 + 6/180 = 966/180 - 966/180 simplified gives 161/30
- So, 64/12 + 3/90 = 161/30
In mixed form: 511/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/12+6/90 64/24+3/90 64/12+9/90 64/36+3/90 64/12+15/90 64/60+3/90 64/12+21/90 64/84+3/90