Add 70/36 and 45/21
1st number: 1 34/36, 2nd number: 2 3/21
70/36 + 45/21 is 515/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
70/36 = 70 × 7/36 × 7 = 490/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
45/21 = 45 × 12/21 × 12 = 540/252 - Add the two like fractions:
490/252 + 540/252 = 490 + 540/252 = 1030/252 - 1030/252 simplified gives 515/126
- So, 70/36 + 45/21 = 515/126
In mixed form: 411/126
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