Add 10/27 and 12/90
10/27 + 12/90 is 68/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
10/27 = 10 × 10/27 × 10 = 100/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
12/90 = 12 × 3/90 × 3 = 36/270 - Add the two like fractions:
100/270 + 36/270 = 100 + 36/270 = 136/270 - 136/270 simplified gives 68/135
- So, 10/27 + 12/90 = 68/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/27+12/90 10/27+24/90 10/54+12/90 30/27+12/90 10/27+36/90 10/81+12/90 50/27+12/90 10/27+60/90 70/27+12/90 10/27+84/90