Add 84/7 and 42/10
1st number: 12 0/7, 2nd number: 4 2/10
84/7 + 42/10 is 81/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
84/7 = 84 × 10/7 × 10 = 840/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
42/10 = 42 × 7/10 × 7 = 294/70 - Add the two like fractions:
840/70 + 294/70 = 840 + 294/70 = 1134/70 - 1134/70 simplified gives 81/5
- So, 84/7 + 42/10 = 81/5
In mixed form: 161/5
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