Add 90/6 and 15/21
1st number: 15 0/6, 2nd number: 15/21
90/6 + 15/21 is 110/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
90/6 = 90 × 7/6 × 7 = 630/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Add the two like fractions:
630/42 + 30/42 = 630 + 30/42 = 660/42 - 660/42 simplified gives 110/7
- So, 90/6 + 15/21 = 110/7
In mixed form: 155/7
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