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Add 20/56 and 42/40

1st number: 20/56, 2nd number: 1 2/40

20/56 + 42/40 is 197/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 40 is 280
  2. For the 1st fraction, since 56 × 5 = 280,
    20/56 = 20 × 5/56 × 5 = 100/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    42/40 = 42 × 7/40 × 7 = 294/280
  4. Add the two fractions:
    100/280 + 294/280 = 100 + 294/280 = 394/280
  5. After reducing the fraction, the answer is 197/140
  6. In mixed form: 157/140

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