Add 70/63 and 21/40
1st number: 1 7/63, 2nd number: 21/40
70/63 + 21/40 is 589/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
70/63 = 70 × 40/63 × 40 = 2800/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
21/40 = 21 × 63/40 × 63 = 1323/2520 - Add the two like fractions:
2800/2520 + 1323/2520 = 2800 + 1323/2520 = 4123/2520 - 4123/2520 simplified gives 589/360
- So, 70/63 + 21/40 = 589/360
In mixed form: 1229/360
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