Add 70/10 and 63/90
1st number: 7 0/10, 2nd number: 63/90
70/10 + 63/90 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
70/10 = 70 × 9/10 × 9 = 630/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Add the two like fractions:
630/90 + 63/90 = 630 + 63/90 = 693/90 - 693/90 simplified gives 77/10
- So, 70/10 + 63/90 = 77/10
In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+63/90 70/30+63/90 70/50+63/90