Add 20/80 and 30/72
20/80 + 30/72 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
30/72 = 30 × 10/72 × 10 = 300/720 - Add the two like fractions:
180/720 + 300/720 = 180 + 300/720 = 480/720 - 480/720 simplified gives 2/3
- So, 20/80 + 30/72 = 2/3
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