Add 45/70 and 27/64
45/70 + 27/64 is 477/448.
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,
45/70 = 45 × 32/70 × 32 = 1440/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
27/64 = 27 × 35/64 × 35 = 945/2240 - Add the two like fractions:
1440/2240 + 945/2240 = 1440 + 945/2240 = 2385/2240 - 2385/2240 simplified gives 477/448
- So, 45/70 + 27/64 = 477/448
In mixed form: 129/448
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+27/64 45/70+54/64 45/70+81/64