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Add 90/20 and 10/7

1st number: 4 10/20, 2nd number: 1 3/7

90/20 + 10/7 is 83/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    90/20 = 90 × 7/20 × 7 = 630/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    10/7 = 10 × 20/7 × 20 = 200/140
  4. Add the two like fractions:
    630/140 + 200/140 = 630 + 200/140 = 830/140
  5. 830/140 simplified gives 83/14
  6. So, 90/20 + 10/7 = 83/14
    In mixed form: 513/14

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