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Add 8/45 and 90/70

1st number: 8/45, 2nd number: 1 20/70

8/45 + 90/70 is 461/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 45 × 14 = 630,
    8/45 = 8 × 14/45 × 14 = 112/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    90/70 = 90 × 9/70 × 9 = 810/630
  4. Add the two like fractions:
    112/630 + 810/630 = 112 + 810/630 = 922/630
  5. 922/630 simplified gives 461/315
  6. So, 8/45 + 90/70 = 461/315
    In mixed form: 1146/315

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