Add 72/48 and 84/20
1st number: 1 24/48, 2nd number: 4 4/20
72/48 + 84/20 is 57/10.
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,
72/48 = 72 × 5/48 × 5 = 360/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
84/20 = 84 × 12/20 × 12 = 1008/240 - Add the two like fractions:
360/240 + 1008/240 = 360 + 1008/240 = 1368/240 - 1368/240 simplified gives 57/10
- So, 72/48 + 84/20 = 57/10
In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/96+84/20 72/48+84/40 72/48+84/60