Add 2/70 and 81/40
1st number: 2/70, 2nd number: 2 1/40
2/70 + 81/40 is 115/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
2/70 = 2 × 4/70 × 4 = 8/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
8/280 + 567/280 = 8 + 567/280 = 575/280 - 575/280 simplified gives 115/56
- So, 2/70 + 81/40 = 115/56
In mixed form: 23/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70+81/40 2/70+81/80 6/70+81/40 10/70+81/40 14/70+81/40