Add 1/80 and 98/45
1st number: 1/80, 2nd number: 2 8/45
1/80 + 98/45 is 1577/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
1/80 = 1 × 9/80 × 9 = 9/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
98/45 = 98 × 16/45 × 16 = 1568/720 - Add the two like fractions:
9/720 + 1568/720 = 9 + 1568/720 = 1577/720 - So, 1/80 + 98/45 = 1577/720
In mixed form: 2137/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/80+98/45 1/80+98/90 3/80+98/45 5/80+98/45 7/80+98/45