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Add 7/72 and 7/40

7/72 + 7/40 is 49/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    7/72 = 7 × 5/72 × 5 = 35/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    7/40 = 7 × 9/40 × 9 = 63/360
  4. Add the two like fractions:
    35/360 + 63/360 = 35 + 63/360 = 98/360
  5. 98/360 simplified gives 49/180
  6. So, 7/72 + 7/40 = 49/180

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