Add 84/4 and 80/70
1st number: 21 0/4, 2nd number: 1 10/70
84/4 + 80/70 is 155/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
84/4 = 84 × 35/4 × 35 = 2940/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
80/70 = 80 × 2/70 × 2 = 160/140 - Add the two like fractions:
2940/140 + 160/140 = 2940 + 160/140 = 3100/140 - 3100/140 simplified gives 155/7
- So, 84/4 + 80/70 = 155/7
In mixed form: 221/7
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