Add 64/20 and 42/48
1st number: 3 4/20, 2nd number: 42/48
64/20 + 42/48 is 163/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
64/20 = 64 × 12/20 × 12 = 768/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Add the two like fractions:
768/240 + 210/240 = 768 + 210/240 = 978/240 - 978/240 simplified gives 163/40
- So, 64/20 + 42/48 = 163/40
In mixed form: 43/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/20+84/48 64/40+42/48 64/20+42/96 64/60+42/48