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Add 42/49 and 18/72

42/49 + 18/72 is 31/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 72 is 3528

    Next, find the equivalent fraction of both fractional numbers with denominator 3528
  2. For the 1st fraction, since 49 × 72 = 3528,
    42/49 = 42 × 72/49 × 72 = 3024/3528
  3. Likewise, for the 2nd fraction, since 72 × 49 = 3528,
    18/72 = 18 × 49/72 × 49 = 882/3528
  4. Add the two like fractions:
    3024/3528 + 882/3528 = 3024 + 882/3528 = 3906/3528
  5. 3906/3528 simplified gives 31/28
  6. So, 42/49 + 18/72 = 31/28
    In mixed form: 13/28

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