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Add 63/72 and 16/20

63/72 + 16/20 is 67/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 20 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    63/72 = 63 × 5/72 × 5 = 315/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    16/20 = 16 × 18/20 × 18 = 288/360
  4. Add the two fractions:
    315/360 + 288/360 = 315 + 288/360 = 603/360
  5. 603/360 simplified gives 67/40
  6. So, 63/72 + 16/20 = 67/40
    In mixed form: 127/40

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