Add 70/4 and 63/18
1st number: 17 2/4, 2nd number: 3 9/18
70/4 + 63/18 is 21/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
63/18 = 63 × 2/18 × 2 = 126/36 - Add the two like fractions:
630/36 + 126/36 = 630 + 126/36 = 756/36 - 756/36 simplified gives 21/1
- So, 70/4 + 63/18 = 21/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+63/18 70/4+63/36 70/12+63/18 70/4+63/54 70/20+63/18 70/4+63/90 70/28+63/18