Add 18/63 and 45/70
18/63 + 45/70 is 13/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
18/63 = 18 × 10/63 × 10 = 180/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Add the two like fractions:
180/630 + 405/630 = 180 + 405/630 = 585/630 - 585/630 simplified gives 13/14
- So, 18/63 + 45/70 = 13/14
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