Add 21/54 and 36/10
1st number: 21/54, 2nd number: 3 6/10
21/54 + 36/10 is 359/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
36/10 = 36 × 27/10 × 27 = 972/270 - Add the two like fractions:
105/270 + 972/270 = 105 + 972/270 = 1077/270 - 1077/270 simplified gives 359/90
- So, 21/54 + 36/10 = 359/90
In mixed form: 389/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54+36/10 21/54+72/10 21/54+36/20 63/54+36/10 21/54+36/30 21/54+36/50 21/54+36/70