Add 25/21 and 42/30
1st number: 1 4/21, 2nd number: 1 12/30
25/21 + 42/30 is 272/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
25/21 = 25 × 10/21 × 10 = 250/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Add the two like fractions:
250/210 + 294/210 = 250 + 294/210 = 544/210 - 544/210 simplified gives 272/105
- So, 25/21 + 42/30 = 272/105
In mixed form: 262/105
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