Add 70/30 and 72/63
1st number: 2 10/30, 2nd number: 1 9/63
70/30 + 72/63 is 73/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
70/30 = 70 × 21/30 × 21 = 1470/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
72/63 = 72 × 10/63 × 10 = 720/630 - Add the two like fractions:
1470/630 + 720/630 = 1470 + 720/630 = 2190/630 - 2190/630 simplified gives 73/21
- So, 70/30 + 72/63 = 73/21
In mixed form: 310/21
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