Add 21/75 and 8/7
1st number: 21/75, 2nd number: 1 1/7
21/75 + 8/7 is 249/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
21/75 = 21 × 7/75 × 7 = 147/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
8/7 = 8 × 75/7 × 75 = 600/525 - Add the two like fractions:
147/525 + 600/525 = 147 + 600/525 = 747/525 - 747/525 simplified gives 249/175
- So, 21/75 + 8/7 = 249/175
In mixed form: 174/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+8/7 21/75+16/7 21/75+8/14 63/75+8/7 21/75+24/7 21/75+8/21 21/75+40/7 21/75+8/35 21/75+56/7 21/75+8/49