Add 70/15 and 63/45
1st number: 4 10/15, 2nd number: 1 18/45
70/15 + 63/45 is 91/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
70/15 = 70 × 3/15 × 3 = 210/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
63/45 = 63 × 1/45 × 1 = 63/45 - Add the two like fractions:
210/45 + 63/45 = 210 + 63/45 = 273/45 - 273/45 simplified gives 91/15
- So, 70/15 + 63/45 = 91/15
In mixed form: 61/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+63/45 70/15+63/90 70/45+63/45 70/75+63/45