Add 12/63 and 9/70
12/63 + 9/70 is 67/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
12/63 = 12 × 10/63 × 10 = 120/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
9/70 = 9 × 9/70 × 9 = 81/630 - Add the two like fractions:
120/630 + 81/630 = 120 + 81/630 = 201/630 - 201/630 simplified gives 67/210
- So, 12/63 + 9/70 = 67/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63+9/70 12/63+18/70 36/63+9/70 12/63+27/70 60/63+9/70 12/63+45/70 84/63+9/70 12/63+63/70