Add 70/18 and 50/21
1st number: 3 16/18, 2nd number: 2 8/21
70/18 + 50/21 is 395/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
50/21 = 50 × 6/21 × 6 = 300/126 - Add the two like fractions:
490/126 + 300/126 = 490 + 300/126 = 790/126 - 790/126 simplified gives 395/63
- So, 70/18 + 50/21 = 395/63
In mixed form: 617/63
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