Add 54/20 and 72/8
1st number: 2 14/20, 2nd number: 9 0/8
54/20 + 72/8 is 117/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
54/20 = 54 × 2/20 × 2 = 108/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Add the two like fractions:
108/40 + 360/40 = 108 + 360/40 = 468/40 - 468/40 simplified gives 117/10
- So, 54/20 + 72/8 = 117/10
In mixed form: 117/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+72/8 54/20+72/16 54/60+72/8 54/20+72/24 54/20+72/40 54/20+72/56