Add 9/10 and 49/21
1st number: 9/10, 2nd number: 2 7/21
9/10 + 49/21 is 97/30.
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,
9/10 = 9 × 21/10 × 21 = 189/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
49/21 = 49 × 10/21 × 10 = 490/210 - Add the two like fractions:
189/210 + 490/210 = 189 + 490/210 = 679/210 - 679/210 simplified gives 97/30
- So, 9/10 + 49/21 = 97/30
In mixed form: 37/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+49/21 9/10+98/21 9/20+49/21 9/10+49/42 27/10+49/21 9/30+49/21 9/10+49/63 45/10+49/21 9/50+49/21 63/10+49/21 9/70+49/21