Add 42/20 and 18/48
1st number: 2 2/20, 2nd number: 18/48
42/20 + 18/48 is 99/40.
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,
42/20 = 42 × 12/20 × 12 = 504/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Add the two like fractions:
504/240 + 90/240 = 504 + 90/240 = 594/240 - 594/240 simplified gives 99/40
- So, 42/20 + 18/48 = 99/40
In mixed form: 219/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+18/48 42/20+36/48 42/40+18/48 42/20+18/96 42/20+54/48 42/60+18/48 42/20+90/48