Add 70/80 and 1/49
70/80 + 1/49 is 351/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 49 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
70/80 = 70 × 49/80 × 49 = 3430/3920 - Likewise, for the 2nd fraction, since 49 × 80 = 3920,
1/49 = 1 × 80/49 × 80 = 80/3920 - Add the two like fractions:
3430/3920 + 80/3920 = 3430 + 80/3920 = 3510/3920 - 3510/3920 simplified gives 351/392
- So, 70/80 + 1/49 = 351/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+2/49 70/80+1/98 70/80+3/49 70/80+5/49 70/80+7/49