Add 72/80 and 20/54
72/80 + 20/54 is 343/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
72/80 = 72 × 27/80 × 27 = 1944/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
20/54 = 20 × 40/54 × 40 = 800/2160 - Add the two like fractions:
1944/2160 + 800/2160 = 1944 + 800/2160 = 2744/2160 - 2744/2160 simplified gives 343/270
- So, 72/80 + 20/54 = 343/270
In mixed form: 173/270
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