Add 70/9 and 18/40
1st number: 7 7/9, 2nd number: 18/40
70/9 + 18/40 is 1481/180.
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,
70/9 = 70 × 40/9 × 40 = 2800/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
2800/360 + 162/360 = 2800 + 162/360 = 2962/360 - 2962/360 simplified gives 1481/180
- So, 70/9 + 18/40 = 1481/180
In mixed form: 841/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+36/40 70/18+18/40 70/9+18/80 70/9+54/40 70/27+18/40 70/9+90/40 70/45+18/40 70/63+18/40