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Add 42/4 and 72/21

1st number: 10 2/4, 2nd number: 3 9/21

42/4 + 72/21 is 195/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    42/4 = 42 × 21/4 × 21 = 882/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    72/21 = 72 × 4/21 × 4 = 288/84
  4. Add the two like fractions:
    882/84 + 288/84 = 882 + 288/84 = 1170/84
  5. 1170/84 simplified gives 195/14
  6. So, 42/4 + 72/21 = 195/14
    In mixed form: 1313/14

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