Add 6/12 and 12/90
6/12 + 12/90 is 19/30.
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,
6/12 = 6 × 15/12 × 15 = 90/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Add the two like fractions:
90/180 + 24/180 = 90 + 24/180 = 114/180 - 114/180 simplified gives 19/30
- So, 6/12 + 12/90 = 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+24/90 6/24+12/90 18/12+12/90 6/12+36/90 6/36+12/90 30/12+12/90 6/12+60/90 6/60+12/90 42/12+12/90 6/12+84/90 6/84+12/90