Add 21/70 and 75/16
1st number: 21/70, 2nd number: 4 11/16
21/70 + 75/16 is 399/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
21/70 = 21 × 8/70 × 8 = 168/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
75/16 = 75 × 35/16 × 35 = 2625/560 - Add the two like fractions:
168/560 + 2625/560 = 168 + 2625/560 = 2793/560 - 2793/560 simplified gives 399/80
- So, 21/70 + 75/16 = 399/80
In mixed form: 479/80
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