Add 84/10 and 42/7
1st number: 8 4/10, 2nd number: 6 0/7
84/10 + 42/7 is 72/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
84/10 = 84 × 7/10 × 7 = 588/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
42/7 = 42 × 10/7 × 10 = 420/70 - Add the two like fractions:
588/70 + 420/70 = 588 + 420/70 = 1008/70 - 1008/70 simplified gives 72/5
- So, 84/10 + 42/7 = 72/5
In mixed form: 142/5
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