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Add 21/16 and 5/45

1st number: 1 5/16, 2nd number: 5/45

21/16 + 5/45 is 205/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 45 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 16 × 45 = 720,
    21/16 = 21 × 45/16 × 45 = 945/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    5/45 = 5 × 16/45 × 16 = 80/720
  4. Add the two like fractions:
    945/720 + 80/720 = 945 + 80/720 = 1025/720
  5. 1025/720 simplified gives 205/144
  6. So, 21/16 + 5/45 = 205/144
    In mixed form: 161/144

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