Add 98/21 and 90/9
1st number: 4 14/21, 2nd number: 10 0/9
98/21 + 90/9 is 44/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
98/21 = 98 × 3/21 × 3 = 294/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
90/9 = 90 × 7/9 × 7 = 630/63 - Add the two like fractions:
294/63 + 630/63 = 294 + 630/63 = 924/63 - 924/63 simplified gives 44/3
- So, 98/21 + 90/9 = 44/3
In mixed form: 142/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42+90/9 98/21+90/18 98/63+90/9 98/21+90/27 98/21+90/45 98/21+90/63