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Add 18/35 and 40/90

18/35 + 40/90 is 302/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 90 is 630
  2. For the 1st fraction, since 35 × 18 = 630,
    18/35 = 18 × 18/35 × 18 = 324/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    40/90 = 40 × 7/90 × 7 = 280/630
  4. Add the two fractions:
    324/630 + 280/630 = 324 + 280/630 = 604/630
  5. 604/630 simplified gives 302/315
  6. So, 18/35 + 40/90 = 302/315

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