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Add 21/40 and 48/60

21/40 + 48/60 is 53/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 60 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    21/40 = 21 × 3/40 × 3 = 63/120
  3. Likewise, for the 2nd fraction, since 60 × 2 = 120,
    48/60 = 48 × 2/60 × 2 = 96/120
  4. Add the two fractions:
    63/120 + 96/120 = 63 + 96/120 = 159/120
  5. 159/120 simplified gives 53/40
  6. So, 21/40 + 48/60 = 53/40
    In mixed form: 113/40

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