Add 72/10 and 84/63
1st number: 7 2/10, 2nd number: 1 21/63
72/10 + 84/63 is 128/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
72/10 = 72 × 63/10 × 63 = 4536/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
84/63 = 84 × 10/63 × 10 = 840/630 - Add the two like fractions:
4536/630 + 840/630 = 4536 + 840/630 = 5376/630 - 5376/630 simplified gives 128/15
- So, 72/10 + 84/63 = 128/15
In mixed form: 88/15
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