Add 54/10 and 1/21
1st number: 5 4/10, 2nd number: 1/21
54/10 + 1/21 is 572/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
54/10 = 54 × 21/10 × 21 = 1134/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Add the two like fractions:
1134/210 + 10/210 = 1134 + 10/210 = 1144/210 - 1144/210 simplified gives 572/105
- So, 54/10 + 1/21 = 572/105
In mixed form: 547/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+2/21 54/20+1/21 54/10+1/42 54/10+3/21 54/30+1/21 54/10+1/63 54/10+5/21 54/50+1/21 54/10+7/21 54/70+1/21