Add 27/70 and 45/64
27/70 + 45/64 is 2439/2240.
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,
27/70 = 27 × 32/70 × 32 = 864/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
45/64 = 45 × 35/64 × 35 = 1575/2240 - Add the two like fractions:
864/2240 + 1575/2240 = 864 + 1575/2240 = 2439/2240 - So, 27/70 + 45/64 = 2439/2240
In mixed form: 1199/2240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+45/64 27/70+90/64 81/70+45/64