Add 63/9 and 70/40
1st number: 7 0/9, 2nd number: 1 30/40
63/9 + 70/40 is 35/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
63/9 = 63 × 40/9 × 40 = 2520/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Add the two like fractions:
2520/360 + 630/360 = 2520 + 630/360 = 3150/360 - 3150/360 simplified gives 35/4
- So, 63/9 + 70/40 = 35/4
In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+70/40 63/9+70/80 63/27+70/40 63/45+70/40