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Add 7/45 and 8/84

7/45 + 8/84 is 79/315.

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,
    8/84 = 8 × 15/84 × 15 = 120/1260
  4. Add the two like fractions:
    196/1260 + 120/1260 = 196 + 120/1260 = 316/1260
  5. 316/1260 simplified gives 79/315
  6. So, 7/45 + 8/84 = 79/315

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