Add 15/72 and 20/28
15/72 + 20/28 is 155/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
20/28 = 20 × 18/28 × 18 = 360/504 - Add the two like fractions:
105/504 + 360/504 = 105 + 360/504 = 465/504 - 465/504 simplified gives 155/168
- So, 15/72 + 20/28 = 155/168
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