Add 18/7 and 90/54
1st number: 2 4/7, 2nd number: 1 36/54
18/7 + 90/54 is 89/21.
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,
18/7 = 18 × 54/7 × 54 = 972/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Add the two like fractions:
972/378 + 630/378 = 972 + 630/378 = 1602/378 - 1602/378 simplified gives 89/21
- So, 18/7 + 90/54 = 89/21
In mixed form: 45/21
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