Add 80/98 and 18/70
80/98 + 18/70 is 263/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
80/98 = 80 × 5/98 × 5 = 400/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Add the two like fractions:
400/490 + 126/490 = 400 + 126/490 = 526/490 - 526/490 simplified gives 263/245
- So, 80/98 + 18/70 = 263/245
In mixed form: 118/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/98+36/70 80/98+54/70 80/98+90/70