Add 42/70 and 98/21
1st number: 42/70, 2nd number: 4 14/21
42/70 + 98/21 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Add the two like fractions:
126/210 + 980/210 = 126 + 980/210 = 1106/210 - 1106/210 simplified gives 79/15
- So, 42/70 + 98/21 = 79/15
In mixed form: 54/15
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