Add 90/30 and 84/70
1st number: 3 0/30, 2nd number: 1 14/70
90/30 + 84/70 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
84/70 = 84 × 3/70 × 3 = 252/210 - Add the two like fractions:
630/210 + 252/210 = 630 + 252/210 = 882/210 - 882/210 simplified gives 21/5
- So, 90/30 + 84/70 = 21/5
In mixed form: 41/5
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