Add 20/7 and 90/54
1st number: 2 6/7, 2nd number: 1 36/54
20/7 + 90/54 is 95/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
20/7 = 20 × 54/7 × 54 = 1080/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Add the two like fractions:
1080/378 + 630/378 = 1080 + 630/378 = 1710/378 - 1710/378 simplified gives 95/21
- So, 20/7 + 90/54 = 95/21
In mixed form: 411/21
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