Add 98/70 and 63/90
1st number: 1 28/70, 2nd number: 63/90
98/70 + 63/90 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
98/70 = 98 × 9/70 × 9 = 882/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630 - Add the two like fractions:
882/630 + 441/630 = 882 + 441/630 = 1323/630 - 1323/630 simplified gives 21/10
- So, 98/70 + 63/90 = 21/10
In mixed form: 21/10
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