Add 20/42 and 3/45
20/42 + 3/45 is 19/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
20/42 = 20 × 15/42 × 15 = 300/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
3/45 = 3 × 14/45 × 14 = 42/630 - Add the two like fractions:
300/630 + 42/630 = 300 + 42/630 = 342/630 - 342/630 simplified gives 19/35
- So, 20/42 + 3/45 = 19/35
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