Add 63/21 and 42/10
1st number: 3 0/21, 2nd number: 4 2/10
63/21 + 42/10 is 36/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
63/21 = 63 × 10/21 × 10 = 630/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
42/10 = 42 × 21/10 × 21 = 882/210 - Add the two like fractions:
630/210 + 882/210 = 630 + 882/210 = 1512/210 - 1512/210 simplified gives 36/5
- So, 63/21 + 42/10 = 36/5
In mixed form: 71/5
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