Add 98/70 and 21/98
1st number: 1 28/70, 2nd number: 21/98
98/70 + 21/98 is 113/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
98/70 = 98 × 7/70 × 7 = 686/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Add the two like fractions:
686/490 + 105/490 = 686 + 105/490 = 791/490 - 791/490 simplified gives 113/70
- So, 98/70 + 21/98 = 113/70
In mixed form: 143/70
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