Add 21/75 and 2/40
21/75 + 2/40 is 33/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
21/75 = 21 × 8/75 × 8 = 168/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
2/40 = 2 × 15/40 × 15 = 30/600 - Add the two like fractions:
168/600 + 30/600 = 168 + 30/600 = 198/600 - 198/600 simplified gives 33/100
- So, 21/75 + 2/40 = 33/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+2/40 21/75+4/40 21/75+2/80 63/75+2/40 21/75+6/40 21/75+10/40 21/75+14/40