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Add 21/72 and 40/10

1st number: 21/72, 2nd number: 4 0/10

21/72 + 40/10 is 103/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 10 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    21/72 = 21 × 5/72 × 5 = 105/360
  3. Likewise, for the 2nd fraction, since 10 × 36 = 360,
    40/10 = 40 × 36/10 × 36 = 1440/360
  4. Add the two fractions:
    105/360 + 1440/360 = 105 + 1440/360 = 1545/360
  5. 1545/360 simplified gives 103/24
  6. So, 21/72 + 40/10 = 103/24
    In mixed form: 47/24

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