Add 72/63 and 81/30
1st number: 1 9/63, 2nd number: 2 21/30
72/63 + 81/30 is 269/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
72/63 = 72 × 10/63 × 10 = 720/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
81/30 = 81 × 21/30 × 21 = 1701/630 - Add the two like fractions:
720/630 + 1701/630 = 720 + 1701/630 = 2421/630 - 2421/630 simplified gives 269/70
- So, 72/63 + 81/30 = 269/70
In mixed form: 359/70
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