Add 18/2 and 63/70
1st number: 9 0/2, 2nd number: 63/70
18/2 + 63/70 is 99/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
18/2 = 18 × 35/2 × 35 = 630/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
63/70 = 63 × 1/70 × 1 = 63/70 - Add the two like fractions:
630/70 + 63/70 = 630 + 63/70 = 693/70 - 693/70 simplified gives 99/10
- So, 18/2 + 63/70 = 99/10
In mixed form: 99/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2+63/70 18/4+63/70 54/2+63/70 18/6+63/70 90/2+63/70 18/10+63/70 18/14+63/70