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Add 21/60 and 40/45

21/60 + 40/45 is 223/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    21/60 = 21 × 3/60 × 3 = 63/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    40/45 = 40 × 4/45 × 4 = 160/180
  4. Add the two like fractions:
    63/180 + 160/180 = 63 + 160/180 = 223/180
  5. So, 21/60 + 40/45 = 223/180
    In mixed form: 143/180

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