Add 7/12 and 10/90
7/12 + 10/90 is 25/36.
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,
7/12 = 7 × 15/12 × 15 = 105/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
10/90 = 10 × 2/90 × 2 = 20/180 - Add the two like fractions:
105/180 + 20/180 = 105 + 20/180 = 125/180 - 125/180 simplified gives 25/36
- So, 7/12 + 10/90 = 25/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12+10/90 7/12+20/90 7/24+10/90 21/12+10/90 7/12+30/90 7/36+10/90 35/12+10/90 7/12+50/90 7/60+10/90 49/12+10/90 7/12+70/90 7/84+10/90