Add 84/63 and 42/30
1st number: 1 21/63, 2nd number: 1 12/30
84/63 + 42/30 is 41/15.
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,
84/63 = 84 × 10/63 × 10 = 840/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
42/30 = 42 × 21/30 × 21 = 882/630 - Add the two like fractions:
840/630 + 882/630 = 840 + 882/630 = 1722/630 - 1722/630 simplified gives 41/15
- So, 84/63 + 42/30 = 41/15
In mixed form: 211/15
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