Add 90/70 and 84/4
1st number: 1 20/70, 2nd number: 21 0/4
90/70 + 84/4 is 156/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
90/70 = 90 × 2/70 × 2 = 180/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
84/4 = 84 × 35/4 × 35 = 2940/140 - Add the two like fractions:
180/140 + 2940/140 = 180 + 2940/140 = 3120/140 - 3120/140 simplified gives 156/7
- So, 90/70 + 84/4 = 156/7
In mixed form: 222/7
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