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Add 20/16 and 21/56

1st number: 1 4/16, 2nd number: 21/56

20/16 + 21/56 is 13/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 56 is 112

    Next, find the equivalent fraction of both fractional numbers with denominator 112
  2. For the 1st fraction, since 16 × 7 = 112,
    20/16 = 20 × 7/16 × 7 = 140/112
  3. Likewise, for the 2nd fraction, since 56 × 2 = 112,
    21/56 = 21 × 2/56 × 2 = 42/112
  4. Add the two like fractions:
    140/112 + 42/112 = 140 + 42/112 = 182/112
  5. 182/112 simplified gives 13/8
  6. So, 20/16 + 21/56 = 13/8
    In mixed form: 15/8

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