Add 20/27 and 72/80
20/27 + 72/80 is 443/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 27 × 80 = 2160,
20/27 = 20 × 80/27 × 80 = 1600/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
72/80 = 72 × 27/80 × 27 = 1944/2160 - Add the two like fractions:
1600/2160 + 1944/2160 = 1600 + 1944/2160 = 3544/2160 - 3544/2160 simplified gives 443/270
- So, 20/27 + 72/80 = 443/270
In mixed form: 1173/270
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