Add 12/70 and 12/80
12/70 + 12/80 is 9/28.
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,
12/70 = 12 × 8/70 × 8 = 96/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
12/80 = 12 × 7/80 × 7 = 84/560 - Add the two like fractions:
96/560 + 84/560 = 96 + 84/560 = 180/560 - 180/560 simplified gives 9/28
- So, 12/70 + 12/80 = 9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+12/80 12/70+24/80 36/70+12/80 12/70+36/80 60/70+12/80 12/70+60/80 84/70+12/80 12/70+84/80