Add 72/20 and 70/63
1st number: 3 12/20, 2nd number: 1 7/63
72/20 + 70/63 is 212/45.
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,
72/20 = 72 × 63/20 × 63 = 4536/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Add the two like fractions:
4536/1260 + 1400/1260 = 4536 + 1400/1260 = 5936/1260 - 5936/1260 simplified gives 212/45
- So, 72/20 + 70/63 = 212/45
In mixed form: 432/45
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