Add 40/18 and 64/70
1st number: 2 4/18, 2nd number: 64/70
40/18 + 64/70 is 988/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
40/18 = 40 × 35/18 × 35 = 1400/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
64/70 = 64 × 9/70 × 9 = 576/630 - Add the two like fractions:
1400/630 + 576/630 = 1400 + 576/630 = 1976/630 - 1976/630 simplified gives 988/315
- So, 40/18 + 64/70 = 988/315
In mixed form: 343/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+64/70 40/36+64/70 40/54+64/70 40/90+64/70