Add 70/2 and 90/21
1st number: 35 0/2, 2nd number: 4 6/21
70/2 + 90/21 is 275/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
70/2 = 70 × 21/2 × 21 = 1470/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
90/21 = 90 × 2/21 × 2 = 180/42 - Add the two like fractions:
1470/42 + 180/42 = 1470 + 180/42 = 1650/42 - 1650/42 simplified gives 275/7
- So, 70/2 + 90/21 = 275/7
In mixed form: 392/7
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