Add 7/9 and 20/42
7/9 + 20/42 is 79/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
7/9 = 7 × 14/9 × 14 = 98/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126 - Add the two like fractions:
98/126 + 60/126 = 98 + 60/126 = 158/126 - 158/126 simplified gives 79/63
- So, 7/9 + 20/42 = 79/63
In mixed form: 116/63
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