Add 70/9 and 54/40
1st number: 7 7/9, 2nd number: 1 14/40
70/9 + 54/40 is 1643/180.
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,
54/40 = 54 × 9/40 × 9 = 486/360 - Add the two like fractions:
2800/360 + 486/360 = 2800 + 486/360 = 3286/360 - 3286/360 simplified gives 1643/180
- So, 70/9 + 54/40 = 1643/180
In mixed form: 923/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+54/40 70/9+54/80 70/27+54/40 70/45+54/40 70/63+54/40