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Add 20/4 and 42/45

1st number: 5 0/4, 2nd number: 42/45

20/4 + 42/45 is 89/15.

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,
    20/4 = 20 × 45/4 × 45 = 900/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    42/45 = 42 × 4/45 × 4 = 168/180
  4. Add the two fractions:
    900/180 + 168/180 = 900 + 168/180 = 1068/180
  5. After reducing the fraction, the answer is 89/15
  6. In mixed form: 514/15

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