Add 27/21 and 8/80
1st number: 1 6/21, 2nd number: 8/80
27/21 + 8/80 is 97/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
27/21 = 27 × 80/21 × 80 = 2160/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
8/80 = 8 × 21/80 × 21 = 168/1680 - Add the two like fractions:
2160/1680 + 168/1680 = 2160 + 168/1680 = 2328/1680 - 2328/1680 simplified gives 97/70
- So, 27/21 + 8/80 = 97/70
In mixed form: 127/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+8/80 27/21+16/80 27/42+8/80 81/21+8/80 27/21+24/80 27/63+8/80 27/21+40/80 27/21+56/80