Add 18/90 and 36/70
18/90 + 36/70 is 5/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
36/70 = 36 × 9/70 × 9 = 324/630 - Add the two like fractions:
126/630 + 324/630 = 126 + 324/630 = 450/630 - 450/630 simplified gives 5/7
- So, 18/90 + 36/70 = 5/7
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