Add 70/20 and 8/70
1st number: 3 10/20, 2nd number: 8/70
70/20 + 8/70 is 253/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
8/70 = 8 × 2/70 × 2 = 16/140 - Add the two like fractions:
490/140 + 16/140 = 490 + 16/140 = 506/140 - 506/140 simplified gives 253/70
- So, 70/20 + 8/70 = 253/70
In mixed form: 343/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+16/70 70/40+8/70 70/20+24/70 70/60+8/70 70/20+40/70 70/20+56/70