Add 40/70 and 42/64
40/70 + 42/64 is 275/224.
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,
40/70 = 40 × 32/70 × 32 = 1280/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
42/64 = 42 × 35/64 × 35 = 1470/2240 - Add the two like fractions:
1280/2240 + 1470/2240 = 1280 + 1470/2240 = 2750/2240 - 2750/2240 simplified gives 275/224
- So, 40/70 + 42/64 = 275/224
In mixed form: 151/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+42/64 40/70+84/64