Add 21/56 and 8/18
21/56 + 8/18 is 59/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
8/18 = 8 × 28/18 × 28 = 224/504 - Add the two like fractions:
189/504 + 224/504 = 189 + 224/504 = 413/504 - 413/504 simplified gives 59/72
- So, 21/56 + 8/18 = 59/72
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