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Add 54/28 and 21/40

1st number: 1 26/28, 2nd number: 21/40

54/28 + 21/40 is 687/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 28 × 10 = 280,
    54/28 = 54 × 10/28 × 10 = 540/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    21/40 = 21 × 7/40 × 7 = 147/280
  4. Add the two like fractions:
    540/280 + 147/280 = 540 + 147/280 = 687/280
  5. So, 54/28 + 21/40 = 687/280
    In mixed form: 2127/280

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