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Add 28/7 and 20/45

1st number: 4 0/7, 2nd number: 20/45

28/7 + 20/45 is 40/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    28/7 = 28 × 45/7 × 45 = 1260/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    20/45 = 20 × 7/45 × 7 = 140/315
  4. Add the two like fractions:
    1260/315 + 140/315 = 1260 + 140/315 = 1400/315
  5. 1400/315 simplified gives 40/9
  6. So, 28/7 + 20/45 = 40/9
    In mixed form: 44/9

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