Add 54/20 and 90/48
1st number: 2 14/20, 2nd number: 1 42/48
54/20 + 90/48 is 183/40.
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,
54/20 = 54 × 12/20 × 12 = 648/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240 - Add the two like fractions:
648/240 + 450/240 = 648 + 450/240 = 1098/240 - 1098/240 simplified gives 183/40
- So, 54/20 + 90/48 = 183/40
In mixed form: 423/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+90/48 54/20+90/96 54/60+90/48