Add 10/80 and 84/45
1st number: 10/80, 2nd number: 1 39/45
10/80 + 84/45 is 239/120.
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,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
84/45 = 84 × 16/45 × 16 = 1344/720 - Add the two like fractions:
90/720 + 1344/720 = 90 + 1344/720 = 1434/720 - 1434/720 simplified gives 239/120
- So, 10/80 + 84/45 = 239/120
In mixed form: 1119/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+84/45 10/80+84/90 30/80+84/45 50/80+84/45 70/80+84/45