Add 42/48 and 63/20
1st number: 42/48, 2nd number: 3 3/20
42/48 + 63/20 is 161/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
63/20 = 63 × 12/20 × 12 = 756/240 - Add the two like fractions:
210/240 + 756/240 = 210 + 756/240 = 966/240 - 966/240 simplified gives 161/40
- So, 42/48 + 63/20 = 161/40
In mixed form: 41/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48+63/20 42/96+63/20 42/48+63/40 42/48+63/60