Add 12/90 and 9/14
12/90 + 9/14 is 163/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
9/14 = 9 × 45/14 × 45 = 405/630 - Add the two like fractions:
84/630 + 405/630 = 84 + 405/630 = 489/630 - 489/630 simplified gives 163/210
- So, 12/90 + 9/14 = 163/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90+9/14 12/90+18/14 12/90+9/28 36/90+9/14 12/90+27/14 12/90+9/42 60/90+9/14 12/90+45/14 12/90+9/70 84/90+9/14 12/90+63/14 12/90+9/98