Add 70/63 and 21/8
1st number: 1 7/63, 2nd number: 2 5/8
70/63 + 21/8 is 269/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
70/63 = 70 × 8/63 × 8 = 560/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Add the two like fractions:
560/504 + 1323/504 = 560 + 1323/504 = 1883/504 - 1883/504 simplified gives 269/72
- So, 70/63 + 21/8 = 269/72
In mixed form: 353/72
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