Add 12/70 and 84/64
1st number: 12/70, 2nd number: 1 20/64
12/70 + 84/64 is 831/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 64 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 70 × 32 = 2240,
12/70 = 12 × 32/70 × 32 = 384/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
84/64 = 84 × 35/64 × 35 = 2940/2240 - Add the two like fractions:
384/2240 + 2940/2240 = 384 + 2940/2240 = 3324/2240 - 3324/2240 simplified gives 831/560
- So, 12/70 + 84/64 = 831/560
In mixed form: 1271/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+84/64 36/70+84/64 60/70+84/64 84/70+84/64