Add 1/70 and 30/80
1/70 + 30/80 is 109/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
1/70 = 1 × 8/70 × 8 = 8/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Add the two like fractions:
8/560 + 210/560 = 8 + 210/560 = 218/560 - 218/560 simplified gives 109/280
- So, 1/70 + 30/80 = 109/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+30/80 1/70+60/80 3/70+30/80 1/70+90/80 5/70+30/80 7/70+30/80