Add 54/10 and 98/21
1st number: 5 4/10, 2nd number: 4 14/21
54/10 + 98/21 is 151/15.
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,
98/21 = 98 × 10/21 × 10 = 980/210 - Add the two like fractions:
1134/210 + 980/210 = 1134 + 980/210 = 2114/210 - 2114/210 simplified gives 151/15
- So, 54/10 + 98/21 = 151/15
In mixed form: 101/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+98/21 54/10+98/42 54/30+98/21 54/10+98/63 54/50+98/21 54/70+98/21