Add 36/70 and 12/90
36/70 + 12/90 is 68/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
36/70 = 36 × 9/70 × 9 = 324/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Add the two like fractions:
324/630 + 84/630 = 324 + 84/630 = 408/630 - 408/630 simplified gives 68/105
- So, 36/70 + 12/90 = 68/105
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