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Add 72/42 and 56/40

1st number: 1 30/42, 2nd number: 1 16/40

72/42 + 56/40 is 109/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840
  2. For the 1st fraction, since 42 × 20 = 840,
    72/42 = 72 × 20/42 × 20 = 1440/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    56/40 = 56 × 21/40 × 21 = 1176/840
  4. Add the two fractions:
    1440/840 + 1176/840 = 1440 + 1176/840 = 2616/840
  5. 2616/840 simplified gives 109/35
  6. So, 72/42 + 56/40 = 109/35
    In mixed form: 34/35

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