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Add 7/45 and 20/84

7/45 + 20/84 is 124/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 84 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 45 × 28 = 1260,
    7/45 = 7 × 28/45 × 28 = 196/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    20/84 = 20 × 15/84 × 15 = 300/1260
  4. Add the two like fractions:
    196/1260 + 300/1260 = 196 + 300/1260 = 496/1260
  5. 496/1260 simplified gives 124/315
  6. So, 7/45 + 20/84 = 124/315

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