Add 70/20 and 63/36
1st number: 3 10/20, 2nd number: 1 27/36
70/20 + 63/36 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
63/36 = 63 × 5/36 × 5 = 315/180 - Add the two like fractions:
630/180 + 315/180 = 630 + 315/180 = 945/180 - 945/180 simplified gives 21/4
- So, 70/20 + 63/36 = 21/4
In mixed form: 51/4
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