Add 64/90 and 18/70
64/90 + 18/70 is 61/63.
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,
64/90 = 64 × 7/90 × 7 = 448/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630 - Add the two like fractions:
448/630 + 162/630 = 448 + 162/630 = 610/630 - 610/630 simplified gives 61/63
- So, 64/90 + 18/70 = 61/63
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