Add 20/90 and 4/42
20/90 + 4/42 is 20/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
20/90 = 20 × 7/90 × 7 = 140/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
4/42 = 4 × 15/42 × 15 = 60/630 - Add the two like fractions:
140/630 + 60/630 = 140 + 60/630 = 200/630 - 200/630 simplified gives 20/63
- So, 20/90 + 4/42 = 20/63
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