Add 20/45 and 36/80
20/45 + 36/80 is 161/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
20/45 = 20 × 16/45 × 16 = 320/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
36/80 = 36 × 9/80 × 9 = 324/720 - Add the two like fractions:
320/720 + 324/720 = 320 + 324/720 = 644/720 - 644/720 simplified gives 161/180
- So, 20/45 + 36/80 = 161/180
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