Add 80/30 and 2/21
1st number: 2 20/30, 2nd number: 2/21
80/30 + 2/21 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
80/30 = 80 × 7/30 × 7 = 560/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
2/21 = 2 × 10/21 × 10 = 20/210 - Add the two like fractions:
560/210 + 20/210 = 560 + 20/210 = 580/210 - 580/210 simplified gives 58/21
- So, 80/30 + 2/21 = 58/21
In mixed form: 216/21
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