Add 98/45 and 21/56
1st number: 2 8/45, 2nd number: 21/56
98/45 + 21/56 is 919/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
98/45 = 98 × 56/45 × 56 = 5488/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
21/56 = 21 × 45/56 × 45 = 945/2520 - Add the two like fractions:
5488/2520 + 945/2520 = 5488 + 945/2520 = 6433/2520 - 6433/2520 simplified gives 919/360
- So, 98/45 + 21/56 = 919/360
In mixed form: 2199/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45+42/56 98/90+21/56 98/45+63/56