Add 21/30 and 2/54
21/30 + 2/54 is 199/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
21/30 = 21 × 9/30 × 9 = 189/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
2/54 = 2 × 5/54 × 5 = 10/270 - Add the two like fractions:
189/270 + 10/270 = 189 + 10/270 = 199/270 - So, 21/30 + 2/54 = 199/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+2/54 21/30+4/54 21/60+2/54 63/30+2/54 21/30+6/54 21/90+2/54 21/30+10/54 21/30+14/54