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Add 84/4 and 80/45

1st number: 21 0/4, 2nd number: 1 35/45

84/4 + 80/45 is 205/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 45 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    84/4 = 84 × 45/4 × 45 = 3780/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    80/45 = 80 × 4/45 × 4 = 320/180
  4. Add the two fractions:
    3780/180 + 320/180 = 3780 + 320/180 = 4100/180
  5. 4100/180 simplified gives 205/9
  6. So, 84/4 + 80/45 = 205/9
    In mixed form: 227/9

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