Add 4/80 and 10/70
4/80 + 10/70 is 27/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
4/80 = 4 × 7/80 × 7 = 28/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
10/70 = 10 × 8/70 × 8 = 80/560 - Add the two like fractions:
28/560 + 80/560 = 28 + 80/560 = 108/560 - 108/560 simplified gives 27/140
- So, 4/80 + 10/70 = 27/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/80+10/70 4/80+20/70 12/80+10/70 4/80+30/70 20/80+10/70 4/80+50/70 28/80+10/70