Add 63/70 and 21/3
1st number: 63/70, 2nd number: 7 0/3
63/70 + 21/3 is 79/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
63/70 = 63 × 3/70 × 3 = 189/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
21/3 = 21 × 70/3 × 70 = 1470/210 - Add the two like fractions:
189/210 + 1470/210 = 189 + 1470/210 = 1659/210 - 1659/210 simplified gives 79/10
- So, 63/70 + 21/3 = 79/10
In mixed form: 79/10
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