Add 7/42 and 15/64
7/42 + 15/64 is 77/192.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
7/42 = 7 × 32/42 × 32 = 224/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
15/64 = 15 × 21/64 × 21 = 315/1344 - Add the two like fractions:
224/1344 + 315/1344 = 224 + 315/1344 = 539/1344 - 539/1344 simplified gives 77/192
- So, 7/42 + 15/64 = 77/192
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+15/64 7/42+30/64 7/84+15/64 21/42+15/64 7/42+45/64 35/42+15/64 7/42+75/64 49/42+15/64