Add 70/20 and 81/63
1st number: 3 10/20, 2nd number: 1 18/63
70/20 + 81/63 is 67/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
70/20 = 70 × 63/20 × 63 = 4410/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
81/63 = 81 × 20/63 × 20 = 1620/1260 - Add the two like fractions:
4410/1260 + 1620/1260 = 4410 + 1620/1260 = 6030/1260 - 6030/1260 simplified gives 67/14
- So, 70/20 + 81/63 = 67/14
In mixed form: 411/14
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