Add 70/63 and 12/20
1st number: 1 7/63, 2nd number: 12/20
70/63 + 12/20 is 77/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
12/20 = 12 × 63/20 × 63 = 756/1260 - Add the two like fractions:
1400/1260 + 756/1260 = 1400 + 756/1260 = 2156/1260 - 2156/1260 simplified gives 77/45
- So, 70/63 + 12/20 = 77/45
In mixed form: 132/45
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