Add 35/7 and 84/40
1st number: 5 0/7, 2nd number: 2 4/40
35/7 + 84/40 is 71/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
35/7 = 35 × 40/7 × 40 = 1400/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Add the two like fractions:
1400/280 + 588/280 = 1400 + 588/280 = 1988/280 - 1988/280 simplified gives 71/10
- So, 35/7 + 84/40 = 71/10
In mixed form: 71/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7+84/40 35/14+84/40 35/7+84/80 35/21+84/40 35/49+84/40