Add 21/45 and 2/16
21/45 + 2/16 is 71/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
21/45 = 21 × 16/45 × 16 = 336/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
2/16 = 2 × 45/16 × 45 = 90/720 - Add the two like fractions:
336/720 + 90/720 = 336 + 90/720 = 426/720 - 426/720 simplified gives 71/120
- So, 21/45 + 2/16 = 71/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/45+2/16 21/45+4/16 21/90+2/16 21/45+2/32 63/45+2/16 21/45+6/16 21/45+2/48 21/45+10/16 21/45+2/80 21/45+14/16