Add 20/72 and 28/45
20/72 + 28/45 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Add the two like fractions:
100/360 + 224/360 = 100 + 224/360 = 324/360 - 324/360 simplified gives 9/10
- So, 20/72 + 28/45 = 9/10
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