Add 12/90 and 7/10
12/90 + 7/10 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90 - Add the two like fractions:
12/90 + 63/90 = 12 + 63/90 = 75/90 - 75/90 simplified gives 5/6
- So, 12/90 + 7/10 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90+7/10 12/90+14/10 12/90+7/20 36/90+7/10 12/90+21/10 12/90+7/30 60/90+7/10 12/90+35/10 12/90+7/50 84/90+7/10 12/90+49/10 12/90+7/70