Add 6/80 and 49/70
6/80 + 49/70 is 31/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
6/80 = 6 × 7/80 × 7 = 42/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
49/70 = 49 × 8/70 × 8 = 392/560 - Add the two like fractions:
42/560 + 392/560 = 42 + 392/560 = 434/560 - 434/560 simplified gives 31/40
- So, 6/80 + 49/70 = 31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80+49/70 6/80+98/70 18/80+49/70 30/80+49/70 42/80+49/70