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Add 42/90 and 90/7

1st number: 42/90, 2nd number: 12 6/7

42/90 + 90/7 is 1399/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 7 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    42/90 = 42 × 7/90 × 7 = 294/630
  3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
    90/7 = 90 × 90/7 × 90 = 8100/630
  4. Add the two like fractions:
    294/630 + 8100/630 = 294 + 8100/630 = 8394/630
  5. 8394/630 simplified gives 1399/105
  6. So, 42/90 + 90/7 = 1399/105
    In mixed form: 1334/105

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