Add 21/40 and 98/63
1st number: 21/40, 2nd number: 1 35/63
21/40 + 98/63 is 749/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
21/40 = 21 × 63/40 × 63 = 1323/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
98/63 = 98 × 40/63 × 40 = 3920/2520 - Add the two like fractions:
1323/2520 + 3920/2520 = 1323 + 3920/2520 = 5243/2520 - 5243/2520 simplified gives 749/360
- So, 21/40 + 98/63 = 749/360
In mixed form: 229/360
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