Add 20/8 and 75/70
1st number: 2 4/8, 2nd number: 1 5/70
20/8 + 75/70 is 25/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
20/8 = 20 × 35/8 × 35 = 700/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
75/70 = 75 × 4/70 × 4 = 300/280 - Add the two like fractions:
700/280 + 300/280 = 700 + 300/280 = 1000/280 - 1000/280 simplified gives 25/7
- So, 20/8 + 75/70 = 25/7
In mixed form: 34/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+75/70 20/16+75/70 60/8+75/70 20/24+75/70 20/40+75/70 20/56+75/70