Add 20/8 and 25/70
1st number: 2 4/8, 2nd number: 25/70
20/8 + 25/70 is 20/7.
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,
25/70 = 25 × 4/70 × 4 = 100/280 - Add the two like fractions:
700/280 + 100/280 = 700 + 100/280 = 800/280 - 800/280 simplified gives 20/7
- So, 20/8 + 25/70 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+25/70 20/8+50/70 20/16+25/70 60/8+25/70 20/8+75/70 20/24+25/70 20/40+25/70 20/56+25/70