Add 84/4 and 9/7
1st number: 21 0/4, 2nd number: 1 2/7
84/4 + 9/7 is 156/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
84/4 = 84 × 7/4 × 7 = 588/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
9/7 = 9 × 4/7 × 4 = 36/28 - Add the two like fractions:
588/28 + 36/28 = 588 + 36/28 = 624/28 - 624/28 simplified gives 156/7
- So, 84/4 + 9/7 = 156/7
In mixed form: 222/7
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