Add 20/45 and 20/70
20/45 + 20/70 is 46/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
20/70 = 20 × 9/70 × 9 = 180/630 - Add the two like fractions:
280/630 + 180/630 = 280 + 180/630 = 460/630 - 460/630 simplified gives 46/63
- So, 20/45 + 20/70 = 46/63
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